The best thing is to be watchful and see the family doctor for any change in your normal health.

最好的做法就是保持警惕，身体一有变化就去看家庭医生。

《柯林斯英汉双解大词典》

We'll have to be watchful, said Father Terry.

那么我们对他多观察着点儿好了，特里神甫说。

youdao

No question U.S. intelligence agencies should be watchful.

毫无疑问，美国情报机构应保持警惕。

youdao

Further, we must be watchful of illegal aliens voting in current and the presidential race.

FORBES: U.S. Needs Immigration Reform

Wherever there is market power, the antitrust authorities have reason to be watchful.

ECONOMIST: Economics focus

Fed Chairman Bernanke will surmise in a speech that the economy is only pausing, and while the Fed will be watchful, action is not needed.

FORBES: Like Meatloaf, Fed Says, 'Let Me Sleep On It'