... glancing at them. They do the opposite when listening.They are expected to look at the speaker all the time.请问这三处为什么用动名词形式？ 如果是when是介词后面必须用动名词，那periodically后面为什么用动名词呢？when和listening之间有没...
...taminating the soil with gasoline properties such as density of compactionare affected, the results show how this parameter decreases up to 2.18 %, a decrease in the density of compaction results in a higher void ratio, which, in turn, indicates a soil very susceptible to large deformations u...
在外研版九年级上册的M4U1和M10U2分别出现了两个句子make sure you eat plenty of fresh fruit and vegetablesThey also grow grapes and fruits.那fruit到底可数不可数？同理food也是，可数不可数？比如The foods that Australians like most are。。。
我查了剑桥的例句：Police are still no nearer to solving the crime. 警方在侦破此案上依然没有取得任何进展。在字典例句中，前面是主系表，to solving the crime 是状语。我这样理解对吗？想知道这里不可以用to solve 是因为讲不清不定式在...
It is what lies behind the eerie skills of face-recognition programs and what makes it possible for personal assistants such as smart speakers in the home to pick out spoken requests and act on them.请问这是what引导的并列的表语从句吗？
...服服帖帖，幻化无穷，不由让人心旷神怡。It is quite an honor to have the luxury of observing the making of sand
sculpture on the flat dune by artists in whose skillful hands the formless sand
can perform, as the artists wish, countless forms, which makes us stunning and
delightful....
...法子搜索：再用一下N-Gram进行对比： 还可以使用as they are currently conceived（216条）与as are currently conceived（1条）进行对比。还可以把currently换成previously进行对比，结果也呈相似的倾向。3. 求证作者。这个实现起来难度大，暂时...
...if I have seemed to play a trick upon you. In truth, it was partly for your own sake that I did it, and it was my appreciation of the danger whic...
...，原句：If traveling north,you must change at Leeds. 还原：If you are traveling north, you must change at Leeds. If you travel north, you must change at Leeds.
These pieces of wood are some of them far larger than any trees that you have ever seen; but if you examine them you will find that each timber and rib is made up of two or three separate pieces of wood.这里的some of them翻译出来感觉不对，这些木头是他们中的一些人比...