sub·stance /ˈsʌbstəns/ ●●● W3 noun1 material 物質 [countableC]SUBSTANCE a particular type of solid, liquid, or gas 物質The leaves were covered with a strange sticky substance. 樹葉上覆着一層黏糊糊的怪東西。
dangerous/toxic/hazardous/poisonous etc substanceharmful substances in the atmosphere 大氣中的有害物質
Plutonium 238 is one of the most toxic substances known to man. 钚238是人類已知毒性最強的物質之一。
illegal/banned/prohibited/controlled substance (=used especially about illegal drugs) 非法/違禁/管制品〔尤指毒品〕Police found an illegal substance in his car. 警察在他的車裏發現了違禁品。
2 truth 事實 [uncountableU usually in questions and negatives] formalTRUE if something has substance, it is true 事實There is no substance to the rumours (=they are untrue). 這些傳聞毫無根據。
without substance (=untrue)O'Connell’s remarks are completely without substance. 奧康奈爾的話完全站不住腳。
3 ideas 思想 [singular, uncountableU]MEANING the most important ideas contained in an argument or piece of writing 〔論點、文章的〕主旨,主要内容,要義 SYN essenceThe substance of his argument was that people on welfare should work. 他論點的主旨是享受社會福利的人應該去工作。
in substanceWhat she said, in substance, was that the mayor should resign. 她所說的話的中心意思是市長應該辭職。
4 importance 重要性 [uncountableU] formalIMPORTANT importance 重要性 SYN significanceIt was an entertaining speech, but it lacked substance (=there was no important information in it). 演講很有趣味,但缺乏實質性的内容。
matters/issues of substanceWe should be discussing matters of substance. 我們應該討論重要的事情。
5. man/woman of substance British EnglishBrE literary a rich man or woman 富人,有財産的人man/woman of substance• His will, executed on 12 December 1760, shows him to have been a man of substance.• He accepted the semi-political duties of a man of substance in his county.• But Miss Close's father was a man of substance, and he finally bought the picture for a rather large sum.• He was a man of substance.• I was a man of substance now, I had arrived.• The lowest officials on the administrative tier were the village headmen, who were normally men of substance.• I am not worried about the men of substance.• Aristeides represented the land forces, the men of substance, who provided their own armour and were not paid. n COLLOCATIONSadjectivesa dangerous/hazardous/harmful substanceUsing chemicals or other hazardous substances at work can put people's health at risk.
a poisonous substance (also a noxious substance formal) (=harmful to people)Cigarette smoke contains several poisonous substances.
a toxic substance (=harmful to people and the environment)All toxic substances should be labelled and carefully stored in a safe place.
a radioactive substance (=containing a form of energy that can harm people)People who work with radioactive substances are subject to strict regulations.
an illegal/banned/prohibited substance (=used mainly to refer to illegal drugs)Any player found guilty of using banned substances faces the prospect of a lengthy suspension.
a controlled substance law (=an illegal drug)He was charged with possessing a controlled substance.
an organic substance (=from a living thing)Despite being an organic substance, ivory is remarkably durable.
substance• The green colour of the leaf is due to a substance called chlorophyll.• The transportation of flammable substances is tightly regulated.• Although Mr McKinnell's style is more approachable than his predecessor's, close observers reckon his substance is just as strong.• She was arrested for smoking marijuana, an illegal substance.• It was an entertaining speech, but without much substance.• But after seven months the teams were adrift, and had accomplished little of substance.• Poisonous substances, such as garden chemicals, should be clearly labelled.• The half-life of a radioactive substance is the time interval taken for the radiant species present to lose half its radioactivity.• the problem of disposing of radioactive substances• Some substances have the ability to soak up, or adsorb, other chemicals.• Resin is a dark, sticky substance.• Energy, after all, depends upon the speed with which that substance is travelling.• They took it in turns to breathe in the smoke, as the substance sizzled with a malicious delight.• Brown did not contest the substance of the reports.• When the water drops, the substances drift back along the passageways and soak into the water table.• They're asking people to look out for the substances which were in a large grey plastic box.• The substance of Marx's views is the same in both of these books.• toxic substances lacked substance• It lacked substance - almost as much as had my fantasies that Edward was deliberately keeping us apart.