be careful of be careful about的区别
be careful about 通常是对某件事（人）小心. be careful of 一般是指对某样东西……小心. Be careful abou强调的是要当心、小心,对..提高警惕 Be careful of强调对...认真,细心,小心（比较褒义）...
be careful about 通常是对某件事（人）小心. be careful of 一般是指对某样东西……小心. Be careful abou强调的是要当心、小心,对..提高警惕 Be careful of强调对...认真,细心,小心（比较褒义）...