But in 2017 theimprovement in PM 2.5 concentrations stopped and the level flattened out.This winter has seen welcome episodes of clear skies but also more days than in 2016 of the worse,choking smog,when daily PM 2.5 levels rise above 300.The annual average level remains about 25...
...earner's Dictionary上面看到的例句:You should know better than to behave like this. than后面省略了什么成分呢?是you should know吗?还原之后是这样吗?You should know better than you should know to behave like this.根据我的看法,better是副词,所以than后...
...ral-state
immigration enforcement and explicitly encourages state officers to share
information and cooperate with federal colleagues.我想问的是with federal colleagues介词短语做状语,修饰的是哪一部分?to share
information and cooperate和with federal colleagues的关系是什...
2014年高考英语陕西卷有这样一句话:My father never told me what the O. Henry story was about. 请问the O. Henry story 是指关于O. Henry本人的故事 还是 O. Henry 所写的故事?另外,我网上搜索发现有O. Henry's story的说法,和the O. Henry story意思相...