Lead diethyl
[化] 二乙基铅
🧩 词语组成解析
lead
[lid]
vt. 领导;引导;指挥;
vi. 领导;导致;用水砣测深;
n. 铅;领导;榜样;枪弹;
adj. 领头的;最重要的;领先的;
a. [化]二乙基的
🗣️ 情景例句
That took place right after the First World War, didn't it?
它就发生在第一次世界大战之后，是吗？
I used to start working at 9:00 o'clock every day.
我过去常在9:00点钟开始每天工作。
I can see a sweater.
我看见了一件羊毛衫。