They had to be careful of floating chunks of ice.
他们不得不小心漂浮着的厚冰块。
I had to be careful not to get a sore throat and lose my voice.
我必须小心，不要患上咽喉炎而哑了嗓子。
It was too late to be careful.
要小心已经太迟了。
还是小心点儿为好。
我们必须很小心。
I need to be careful with it for the next few weeks.
接下来的几周我得小心点。
Everyone knows to be careful on the first day of April.
每个人都知道在四月的第一天要小心。
You need to be careful to avoid using stale information.
你需要小心避免使用陈旧的信息。
Something else they need to be careful about is medicines.
他们还需要注意的是药物。
Can people overdo protein? Pipitone says you do have to be careful.
人们会过度摄入蛋白质吗？Pipitone 说，你确实要注意了。
You have to be careful with your motorcycle and always wear your helmet.
骑摩托车一定要小心，一定要带头盔。
They have to be careful not to come across as disappointed in their child.
他们必须小心，不要让自己的孩子对父母感到失望。
We need to be careful not to accuse opponents of bad arguments too quickly.
我们还是要小心，不要过快地指责对手的错误论据。
You have to be careful what you say on TV.
在电视上说话时你不得不谨慎。
You'll have to be careful how you frame the question.
如何提出这个问题，你得慎重。
You know, you have to be careful, think critically.
但你知道，你得仔细一点，要批判性地思考。
You've got to be careful when you do this job.
干这活儿非得仔细才行。
I think we have to be careful.
我认为我们必须要小心。
这里需要非常小心。
但你要小心了。
There's more to be careful about.
还有更多需要注意的地方。
这可是一个大问题，你们需要注意。
But we also got to be careful.
但是我们也应当保持谨慎。
So I think we have to be careful.
因此我认为我们必须谨慎行事。
你得小心。
You want to be careful crossing streets.
过马路时应该小心。
But regulators need to be careful.
但是监管者需谨慎。
"You have to be careful here," he says.
“你在这里必须十分小心，”他说道。
您必须小心。
We have to be careful when we use fire.
当我们用火时候必须小心。
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