...;a bar that keeps moving north" thanks to the continuous improvements of 1-2% a year that the manufacturers are making to existing planes.参考译文:目前普遍使用的“短途驮马”(即波音737和空客A320)的后续机型在十年内不会出现。麦克纳尼认为,这部分...
一个例句是:Getting mad at others means other people are getting control of your emotions中means引导的宾语从句中,people are getting control为什么要用进行时态 be+doing 的形式呢?不能直接用一般时态吗?这里是什么用法?
This is a complex process that requires molecular feedback between neural stem cells and microglial cells, which release and express a multitude of molecules.which指代的是process还是microglial cells?