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
Mr. Nelson.
Nelson先生。
Our guarantee covers maintenance for both parts and labor.
我们的保证是包括更换零件和免费保养。
Though he was reluctant to do so at first, we eventually persuaded him to take us.
一开始，他很不愿意，但经劝说，终于同意了。