You must always be very careful to track where identities are established and how (if they can be) they are propagated.

您必须始终非常谨慎地对何处建立标识以及如何进行传播(如果可以传播)进行跟踪。

youdao

You want to be looking for bottled water, or boiled water when you are consuming beverages, and being very careful about handwashing, cause you can always get things from your hands.

喝水时应该喝瓶装水或开水，还要非常认真地洗手，因为你总是用手拿东西。

youdao

M: But I don't understand. You are usually very careful and never make mistakes.

W：但我不明白，你一向都是很细心的，从来不出错。

youdao

But unless you are very careful and disciplined, it is perilously easy for the noise to overwhelm the signal and for the tumult of your inbox to exact a significant cognitive overhead on your daily productivity.

FORBES: Mailbox App Revolutionizes Gmail Productivity, Will Google (Or Apple) Buy It?

If you are under suspicion and your activities are being monitored, you have to be very careful how you even research potential leak arrangements.

FORBES: TooManyLeaks: A List Of Twenty WikiLeaks Copycats

Not only do you have this two year warranty, people are very careful indeed to tell you that you do have it.

FORBES: Apple is fined ��900,000 over European Union Warranty Laws