much sure/quite sure/very sure什么区别?
只能说quite sure ,为什么不能说very sure?
make sure 和make sure什么区别
Be sure of与Be sure to有什么区别
make sure与be sure有什么区别?
sure的用法be sure of doing和 be sure to do有什么区别呀?
for sure与sure的区别?
make sure 和be sure的区别
be sure 和make sure的区别
be sure和 make sure的区别
be sure 和 make sure 的区别
be sure和know for sure 区别
sure certain的区别