If you describe measures or changes as cosmetic, you mean they improve the appearance of a situation or thing but do not change its basic nature, and you are usually implying that they are inadequate.
①It is a cosmetic measure which will do nothing to help the situation long term.
②In general, the students view these changes as merely cosmetic.
这里再补充一个词汇“ostensible”，作为形容词也可以表示“表面上的；貌似真实的”【Ostensible is used to describe something that seems to be true or is officially stated to be true, but about which you or other people have doubts.】
除此之外，“cosmetic”作为本义还有一个很常见的用法：cosmetic surgery 整容手术
【Cosmetic surgery is surgery done to make a person look more attractive.】
You refer to a newspaper or organization as the organ of the government or another group when it is used by them as a means of giving information or getting things done.
①The Security Service is an important organ of the State.
②The most powerful organ of government in Scotland is the Scottish Office.
When a woman conceives, she becomes pregnant.
①Women, he says, should give up alcohol before they plan to conceive.
②About one in six couples has difficulty conceiving.
①have a bun in the oven 怀孕，身怀六甲
② be in the (pudding) club 怀孕，肚子大了
再补充一个【熟词生义】“labour”，作为不可数名词，表示“分娩；临盆”【Labour is the last stage of pregnancy, in which the baby is gradually pushed out of the womb by the mother.】
I thought the pains meant I was going into labour.
“deliver”作为动词，也可以表示“接生(婴儿)”【When someone delivers a baby, they help the woman who is giving birth to the baby.】
If a situation or activity is informed by an idea or a quality, that idea or quality is very noticeable in it.
①All great songs are informed by a certain sadness and tension.
②The concept of the Rose continued to inform the poet's work.
“Inform”除了可以表示“影响”以外，还可以表示“告发;检举”，通常的搭配是【inform on sb】If someone informs on a person, they give information about the person to the police or another authority, which causes the person to be suspected or proved guilty of doing something bad.
Thousands of American citizens have informed on these organized crime syndicates.
An arm of an organization is a section of it that operates in a particular country or that deals with a particular activity.
Millicom Holdings is the British arm of an American company.