自2010年至今的四级考试中， 共出现过 次
自2010年至今的六级考试中， 共出现过 次
N-COUNT 物质;物品;东西 A substance is a solid, powder, liquid, or gas with particular properties.
There's absolutely no regulation of cigarettes to make sure that they don't include poisonous substances...
The substance that's causing the problem comes from the barley.
N-UNCOUNT 重要性;重大意义 Substance is the quality of being important or significant.
It's questionable whether anything of substance has been achieved...
Syria will attend only if the negotiations deal with issues of substance.
N-SING 主旨;要点;实质;基本内容 The substance of what someone says or writes is the main thing that they are trying to say.
The substance of his discussions doesn't really matter.
N-UNCOUNT 事实基础;根据 If you say that something has no substance, you mean that it is not true.
There is no substance in any of these allegations.
PHRASE 财力雄厚的;有权有势的；有影响力的 A person of substance has a lot of money, power, or influence.
...mature men of substance.