Polyethyltriethoxysilane
[化] 聚乙基三乙氧基硅烷
🗣️ 情景例句
If we can't tie the tie,
假如我们弄不好领结，
I'll call the roll before class.
课前我要点名。
and by the time he is grown and able to take part in its activities,
等他长大了，能做各种事了