如何理解这个英语句子?They have to distinguish between words in upper and lower-case lettersin upper and lower-case letters这个是大小写字母的意思？

如何理解这个英语句子?They have to distinguish between words in upper and lower-case lettersin upper and lower-case letters这个是大小写字母的意思？ 如何从语法角度理解这个英语句子They will tell you that's how much you have to pay.其中that和how都是宾语从句的引导词吗?是否可以省略‘that's'? 英语句子如何拆分理解? 怎么理解这个英语句子 如何理解这个英语句子...champion When it comes to education reform,both men have a party-base problem.Romney as governor championed charter schools and rigorous standards. 这个英语句子要怎么理解?“Unfortunately,she says,many people would never have done what they did,and that is the real truth. 这是做阅读碰到的句子,不知道“would never have done what they did”怎么理解 感激! 英语小小问题have they a large house这个句子正确吗? 英语 英语CET4 大学英语长难句.如何理解这个句子?结和句子语境,英语 英语CET4 大学英语长难句. 如何理解这个句子?结和句子语境,详细分析句子中的oblige 如何用?详细点 英语高手帮 They began to work instead to make life better .这个句子如何理解,instead 后加to do .还是doing 省略条件句One minute earlier,and we could have caught the early bus.这个句子中的and如何理解? what do they have with them?翻译这个句子 They have many books.怎么对这个句子提问? They have a sore throat这个句子对,还是They have sore throats对? 如何脱口而出英语如何脱口而出,如何理解记忆句子 如何理解:They have done more than they can do for the party. 英语句子的理解When the demands on food,clothes,and some other necessities of life become far beyond being satisfied,people have come to spend extra money on traveling.being satisfied.如何理解have come to 如何理解 他们得了重感冒?英语如何翻译 They have bad colds,还是They have a bad cold? They began to work instead to make life better .这个句子如何理解,instead 后加to do .还是doing .instead 能不能举例说明，