Lead disilicate
[機] 二矽酸鉛
?? 詞語組成解析
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;
[機] 二硅酸鹽
??? 情景例句
Donald passed away a couple of years ago.
Donald幾年前去世了。
I wrote several letters on my mother's behalf.
我代表我母親寫了幾封信。
It's about a time when there were black slaves in North America. It's about their fight for freedom.
（它）講的是有一段時期，北美洲存在黑奴。影片講述他們為自由而斗爭的情況。