Tetraethyl lead
四乙鉛
?? 詞語組成解析
a. [化]四乙基的
lead
[lid]
vt. 領導;引導;指揮;
vi. 領導;導致;用水砣測深;
n. 鉛;領導;榜樣;槍彈;
adj. 領頭的;最重要的;領先的;
??? 情景例句
Dearly beloved,
敬愛的人們，
We've got to get a telepnone stand for the hallway.
我們必須有一部電話放在走廊。
A long time ago, one of his ancestors who lived in Africa went into the forest to cut down a tree to make a drum.
很久以前，他那生活在非洲的祖先中有一人走進森林去砍樹來做鼓。