一种是if you are not moving ahead,you are falling behind.表示客观规律
还有一种是祈使句的时候go there if it doesn't rain
还有当if引导的不是条件状语时候,if当是否用,we don't konw if it's right.
will有一个动词的意思,就是愿意
这个时候不表将来
一种是if you are not moving ahead,you are falling behind.表示客观规律
还有一种是祈使句的时候go there if it doesn't rain
还有当if引导的不是条件状语时候,if当是否用,we don't konw if it's right.
will有一个动词的意思,就是愿意
这个时候不表将来