Lead tetraethyl
[化] 四乙铅
🧩 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]四乙基的
🗣️ 情景例句
Practice tenses as much as possible.
操练各种时态。
Do you mind if I turn off the light?
我把灯关了，好吗？
for it looked on sympathetically until the drunk was out of the way before once more turning its attention to the matador.
直到他的背影消逝，才重新将注意力转向斗牛士。