To find the easier solution, you need to be alert for a lazier way.

寻找简单的方法，你需要警惕懒惰的方法。

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Teach the patient to be alert for recurrence of diarrhea, fever, and other symptoms and for evidence of the same symptoms in family members.

教育病人警惕腹泻、发烧及其他症状的复发及家族成员出现相同症状迹象。

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Needless to say, the BOJ took no action, but with the all time historic low of 79.75 just around the corner, it may be prudent to be alert for such moves.

毋庸赘言，日本央行没有任何动静，但因为79.75的历史最低点就在不远处，还是谨慎点，对干预保持警惕。

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The U.S.State Department has issued a fresh travel alert for India, saying the U.S.government continues to receive information that terrorist groups may be planning attacks here.

VOA: standard.2009.10.30

Taxes are a heavy component of estate planning, but it is important to be alert for other issues.

FORBES: Gun Collections Pose Special Estate Problems

However, after a five-month intermediate-term rally to an overbought condition, it is a time to be alert for changes.

FORBES: Two Years Of Fears Disappear

The say parents transporting babies in car seats should monitor them as closely as possible to be alert for any possible breathing problems.

BBC: Car seat danger to new babies