司机要警惕疲劳驾驶。
Drivers must guard against tired driving.
to be on the alert; vigilant; alert
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
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Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
司机要警惕疲劳驾驶。
Drivers must guard against tired driving.
谁该警惕网络诈骗?
Who should be wary of online scams?