当心点，玛格丽特。

Take care, Margaret.

说话当心点，否则你就得道歉赔罪。

Be careful of what you say or you'll have to eat humble pie .

你当心点, 这些自酿的酒,有的劲儿很大.

Be careful. Some of these home brews have a kick like a mule.

下次你最好是当心点，看你是跟谁打哈哈。

E. g. Better look out who you're fooling with next time.

他在溜走之前威胁地说，“当心点，外国佬！”

‘Be careful, gringo, ’ he said menacingly, before sliding away.

嘿，你当心点。那车很快的，你会被撞到的。

Come on, watch it! The truck is coming really fast. You might get hit.

嘿，那个兽穴里有一只熊，咱们最好当心点。

Well, there's a bear in that lair, we'd better take care!

嘿嘿嘿，你当心点。那车很快的，你会被撞到的。

Hey hey hey, c'mon, watch it. The truck is coming really fast. You might get hit.

人们给你电话说，「当心点，小宝贝，总有一天你会跌跤」

People'd call, say, Beware doll, you're bound to fall

虽然你不想浪费大量时间来推测，或者身处流言中心，但这能让你在非常时期当心点。

Although you don't want to waste a lot of time speculating -- or be at the center of the rumor mill -- it can be helpful to be observant during uncertain times.