Chalkogenide
硫属化物
🗣️ 情景例句
Your idea sounds like a good one.
你的想法听起来很不错。
Shame on you!
不知羞耻！
Settlers made agreements with Native American cheifs but always broke them afterwards.
殖民者同美洲土著人的首领达成了协议，但是这些协议随后总是被撕毁。