Lead borosilicate
[化] 硼硅酸铅
🧩 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;
[机] 硼硅酸盐
🗣️ 情景例句
I estimate his age to be about 30.
我估计他的年龄大约30岁。
What is the total circulation of this journal.
这份报刊总发行量多少？
I know it's not necessary. I want to do it.
我知道不必这样，可是我愿付？/span>