在英语中下划线是什么意思,比如a waste of time/money

在英语中下划线是什么意思,比如a waste of time/money 英语中下划线的用法谁知道? it was 划线 a caterpillar ppt中下划线怎么画,是要在下划线上输入字的这中下划线? 初二英语划线提问her father began to learn a foreign language (when he was 40years old).划线提问 请确认下列划线英语的短语类型请确认划线英语在文章中的短语类型比如np,pp, vp之类的 英语中的比较级是什么意思?还有划线提问 英语中mit的是什么意思?比如在commitment中的mit 划线提问Tom was a doctor.a doctor提问 英语：选择划线词在句子中的正确释义选择划线词在句子中的正确释义1.The child feel asleep in the end after crying for a long time. -----------A. went to sleep B.went to bed C.was in bed D.stayed in bed2.It's very 上层鱼中层鱼下层鱼是什么意思?新手养鱼看到大家都在说上中下三层鱼, 英语 对划线部分提问 i was happy yesterday 划线部分是i What a fool I was to do such a thing是什么意思?着写英语是什么意思啊? 英语按要求改句Dr Sun Yatsen was a famous historical person.(一般疑问句,肯定回答）He was born in guangdong.（就划线部分提问划线部分是in guangdong It was there a moment ago.对划线部分提问划线部分是a moment ago He was a teacher ten years ago.a teacher为划线部分,对划线部分提问 水调歌头中下阕,词人在思考什么 It was sunny yesterday.（划线提问）划线划在sunny