"they were careful when crossing the busy street" "be careful to keep her shoes clean" "did very careful research" "careful art restorers" "careful of the rights of others" "careful about one's behavior"
"careful of her feelings" "heedful of his father's advice"
"walking at the same measured pace" "with all deliberate speed"
"Thou art careful and troubled about many things"
"careful with money"
误 You must be careful of your exercises.
正 You must be careful with your exercises.
析 be careful of 是“提防”“当心”的意思; be careful with则是“认真做某事”“慎重对待某事”的意思。
你应该更加注意自己的健康。误 You should be more careful for your health.
正 You should be more careful about〔of〕 your health.
析 be careful for表示“对…挂念”“对…惦记”,表示“注意”“关心”要用be careful about〔of〕。