The roughly 20 million inhabitants ofthese nations looked hopefully to the future.句中，roughly为副词，后边的成分是名词短语20 million inhabitants，副词修饰名词，这里如何理解？能否改为rough?
网上看到一篇文章，pineapple后面用了复数谓语were，请问老师这是对的吗？Did you know that pineapple were named after pinecones? The Spanish
called pineapples the 'Pine oftheIndies' because they were both hard and
spiky.
Once inside, it will be maneuvered
remotely by operators at another building at the plant because ofthe fatally
high radiation emitted by the melted debris. 这个once
是连词还是副词？能直接接inside吗？是不是要接句子？
It was my sister who first had the idea to cycle along the entire Mekong River from where it begins to where it ends.这里 it was...who 是强调句型，怎么区别 who 引导的定语从句？Where 引导宾语从句么? 如果不用宾语从句，改成 from the beginning ofthe river to its en...
The use
of fiber cloth ensured that the heat generated by the composite material
can be transferred to the road surface.宾语从句后的句子若表示科学原理、客观真理、、现阶段存在的客观事实、自然现象等，不论主句用何种时态，从句一律用一般现...
在有关定语从句的句子和考题中经常看到 some of which, none of which, both of which, all of which, several of which, one of which, many of which…，请老师说说它们的用法特点以及在考试中要注意的问题，谢谢！
Fraud can also be committed by wire, phone, or e-mail, but is only considered mail fraud when it involves things being sent by mail.通过上下文判断，我认为是名词通格（things）和动名词被动语态（being sent）构成的“动名词复合结构”，强调...
...anor, Norfolk, is very anxious to know. This little conundrum came by the first post, and he was to follow by the next train. There’s a ring at the bell, Watson. I should not be very much surprised if this were he.”这正是希尔顿·丘比特先生急着想搞清楚的问题，他住...
The higher salaries paid overseas have caused a haemorrhage of talent from this country .海外的高薪导致该国的人才流失。我觉得句中The higher salaries paid overseas中，overseas前似乎应该有by，即：The higher salaries paid by overseas请专家指教，谢谢！
如：Everyone should enjoy the right of access to the countryside.（人人都应享有进入乡村的权利。）——《牛津词典》He is from the countryside.以及下面这句话中的countryside可以用零冠词的理由是？magnificent views over open countryside（开阔乡村的壮丽...