You should see a dentist.你应该看牙医。
You shouldn’t lift heavy things.你不应该提重物。
You look pale. 你看起来气色不好,很苍白.
You’d better go to see a doctor. 你最好去看医生.
You’d better not go to school today. 今天你最好不要去上学.
Thank you for your flowers and fruit. 谢谢你送来的鲜花和水果.
I couldn’t read them until today.
直到今天我才读了他们.