Ethyl tin
[化] 四乙基锡
🧩 词语组成解析
[化] 乙基\\n[医] 乙基
tin
[tin]
n. 锡;罐头盒;马口铁;镀锡薄钢板;
adj. 锡制的;假冒的;无价值的;蹩脚的;
vt. 镀锡，包锡;给…包马口铁;包白铁;
🗣️ 情景例句
You have to ask for my father's permission.
你必须征得我父亲的同意。
Generally speaking, a contract cannot be changed after it has been signed by both parties.
一般来讲，合同一经双方签订就不得更改。
At the moment in my country there are very few such schools.
目前在我国这类学校太少了。