look after、take care of、care for。
look after
1.照顾；照料；照看；关心：
I will look after her child when she is on a business trip.
她出差时我将照看她的孩子。
2.目送；从后面盯着；眼睛盯着：
They looked after the train as it moved out.
他们目送火车开出车站。
3.关注；为…操心：
He only looks after his own interests.
他只顾自己的利益。
4.找；寻求；要求：
What is he looking after?
他在找什么?
例句
It's her duty to look after her aunt.
照顾她姨妈是她分内的事。
You will have to go to your headquarters; the officers there will look after you.
你应该到你们的司令部去；那儿有军官会照顾你。
We don't have that, but we have a fantastic community of people who live near us and we have tolook after them so they come back time and time again.
而我们没有这种条件，但我们有不可思议的一社区的人们住在我们附近，我们必须关心他们，他们才能一次又一次地回来光顾我们。
take care of
1.负责；照顾；关怀
2.赡养，为…提供生计
3.应付，处理；满足…的需要
4.[委婉语]逮捕
例句
I always used to laugh to myself when I heard people say that we need to take care of ourselvesin order to be able to take care of others.
我听到一些人说要照顾好我们自己，这样我们才有能力去照顾好别人。 不知道为什么，当我听到这句话的时候，我经常笑我自己。
Take care of your car, because you drive the car and you need it every day. The car is necessaryfor you.
所以好好照顾自己的车，因为车子是你在开，你每天都需要用到车，它是你的必需品。
care for
1.关心，关怀；爱护，照顾；赡养；对…担心：
Lily spent years caring for her sick uncle.
莉莉照顾了她生病的叔叔好多年。
2.喜爱，对…中意：
I don't care for that colour.
我不喜欢那种颜色。
3.介意，计较；放在心上：
She cares only for herself.
她只关心她自己。
4.想要；希望：
Would you care for some more tea?
你是不是还想要点茶?
例句
He choose the woman to cook and care for him at regular intervals.
他每隔一定时间会选择一个女人来为他做饭并照顾他。
There we experience that we belong not to people, not even to those who love us and care for us, but to God and God alone.
在孤独中我们会体会到我们不属于他人，甚至不属于那些爱我们和关心我们的人，我们属于主，而且只属于主。
And then I can give them back to you, knowing you have always and will always care for them.
然后我就能将他们重新还给你，他们会成为懂得你总是并且永远会关心他们的人。