be about to do sth 是什么意思?
will do sth, be about to do sth, be to do sth, be going to d
"be anxious about /to do sth."
be crazy about sth to do with
be about to do sth的用法
sb be bound to do sth是什么意思
be surprise to do sth是什么意思
be willing to do sth difficult是什么意思?
be to do sth.和be about to do sth.有什么区别?
be happy to do sth中的sth是什么意思
be to do,be about to do,determine to do sth.的意思是什么
英语翻译用be about to do sth when 的句式
对be about to do sth when 造句