Thallocenium
二茂铊(阳离子)
🗣️ 情景例句
I made an appointment with the doctor at three.
我和医生约好3点钟看病。
Whom will you vote for?
你将投票给谁？
I sat down on one of those modern chairs with holes in it and waited.
我坐在一个新式的满是网眼儿的椅子上，等待着。