Who could forget his speech at last year's party?
谁能忘记他去年在聚会上的讲话呢？
It should not be forgotten that people used to get much more exercise.
不应忘记的'是，人们过去的锻炼要多得多。
Could you possibly forget about work for five minutes?
你能不能匀出五分钟来不去想工作？
I'd like to try and forget the whole episode.
我倒想尽量把那段经历全部忘掉。
I'll never forget hearing this piece of music for the first time.
我永远不会忘记第一次听到这首曲子的情景。