Waiting to do sth until you can be sure of doing it exactly
Waiting to do sth until you can be sure of doing it exactly
(1/2)Waiting to do something until you can be sure of doing
be sure+从句/be sure to do sth /be sure of sth/doing sth 有什么区别
be sure to do sth和be sure of doing sth的区别
辨析 be sure of 与be sure to do sth
be sure to do sth be sure of sth be sure+that从句
make sure to do sth、be sure of sth、be sure that 、be certain
be afraid to do sth be afraid of doing sth
sure的用法be sure of doing和 be sure to do有什么区别呀?
be afraid of doing sth be busy doing sth be glad to do buy s
辩析be sure to do sth be sure to do sth be sure that+从句
be sure of doing 和 be sure to do 有什么区别