请详解be careful ,look out ,watch out和take care当“小心”讲时的区别

请详解be careful ,look out ,watch out和take care当“小心”讲时的区别 watch out ,look out ,take care,be careful 有什么区别呀 请问Look out和Be careful 都有小心的意思,用法上有什么区别呢? be careful 和take care 的区别 look .out,watch.out,take care,be carefull分别如何造句 take care与look out区别是什么? look out 和watch out区别? look out 与watch out的区别 take care ,be care,look out,这三个词有什么区别,应该怎样用? look out 有小心的意思吗?是take care!的同义词吗? watch out与look at的区别 小心火 用be careful和look out分别怎么说?