1、commit
犯(罪);做(壞事)
I have never committed any crime.
我從來沒犯過罪。
This is a man who has committed murder.
這是一個殺人犯。
撥出，調配(資金、資源等)
They called on Western nations to commit more money to the poorest nations.
他們呼吁西方國家向極端貧困國家投入更多的錢。
The government had committed billions of pounds for a programme to reduce acid rain.
政府已經給一個旨在減少酸雨的方案撥了幾十億英鎊。
承諾，保證(做);忠于(某人)
I would advise people to think very carefully about committing themselves to working Sundays.
我建議大家慎重考慮一下答應周日工作的問題。
I'd like a friendship that might lead to something deeper, but I wouldn't want to commit myself too soon.
我希望擁有一份能進一步發展的友誼，但又不想太快作出承諾。
2、come back
回憶起;回想起來
He was also an MP — I'll think of his name in a moment when it comes back to me.
他當時也是一位國會議員，他的名字我得想一下才能記起來。
When I thought about it, it all came back.
當我回想起來，往事全都涌上了心頭。
重新流行;再度時興
I'm glad hats are coming back.
我很高興又開始流行戴帽子了。