Wittite
硫硒铅铋矿
🗣️ 情景例句
Well, a wristwatch,
嗯，一个手腕表，
All products have to pass strict inspection before they go out.
所有产品出厂前必须要经过严格检查。
The Turners are going on a train. The conductor is coming round.
特纳一家人在火车上。列车员走过来。