Dimetasomatism
雙交代作用
??? 情景例句
Rotten weather, isn't it?
天氣糟透了， 不是嗎？
I'm going skating in the Alps next month.
下個月我去阿爾卑斯山滑雪。
In the afternoon, classes are over at 3:30, and I get home at about 4:00.
下午三點半下課，我大概四點到家。