Lead tetracthyl
[机] 四乙基铅
🧩 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;
🗣️ 情景例句
When you feel your life is threatened, just dial 999 to get help.
当你的生命受到威胁的时候，拨打 999 求救。
Would you hold the line, please, I will find out his number for you.
请你不要挂断，我替你找他的号码。
One lady brought in a biscuit on a wheelbarrow.
一位女士用手推车运来一个饼干，