If we now thirst for protein as if it were water, it may be because the other two macronutrients – fats and carbohydrates – have each in turn been made to seem toxic in the public mind. 这里的each in turn可以看做插入语吗，那each的词性是代词还是副词？
...一下这个句子：As for the literature, painting, and sculpture of Aframericans--such as there is--it is identical in kind with the literature, painting, and sculpture of white Americans; that is, it shows more or less evidence of European influence.请问这句话中的such as there is 如何...
American archaeologist William Rathje developed a hypothesis that considered an explosion in long-distance exchange a fundamental cause of Mayan civilization in Mesoamerica. that后面的同位语从句中的句子结构不太理解，请求老师解答。
...s for changes followed controversial encounters between police and African American civilians.Some of the demonstrations were peaceful.Some were violent with cars and buildings being damaged and stores being looted.请教老师：with cars and buildings being damaged and stores being looted. 中的2...
...g a man to prison for defending national property is generally regarded as no justice.答案是改为 Sending.....regarded as injustice.就是把后面的no justice 改成 injustice请问老师这里为什么这么改呢，这两种否定结构有什么区别吗？
...China — will become a much larger force in the world economy than widely expected,based on projections of demographic and economic growth,with China potentially overtaking Germany this decade.尊敬的老师请问，粗体字部分是作句子什么成份？是作主语的补足语还是伴随状...
...ganisation itself, expertise is usually greatly valued, and executives are expected, as they rise within the system, to know more than those beneath them and, therefore, to manage the operation.请老师重点详细分析此句的句子成分。
...nts both for and against monarchy. When public opinion is particularly polarized, as it was following the end of the Franco regime, monarchs can rise above “mere”&nbs...
... capabilities in mobilizing the nation and rich experience in dealing with public health issues, Xi said, adding that China will definitely win the battle against the disease.这是中国日报APP中的一段话，我查了牛津词典，capability后应该接to do或者of doing，并没有capabilit...
Quick passage of a new round of coronavirus relief for a strugggling American economy comes first,but the new democratic senate will also move quickly to confirm the Biden cabinet nominees awaiting hearings.这里的awaiting hearings是否有误呢？ 应该是to await hearings吗？ 还有，如果...
There is a column called“Foreign Culture”，（aimed）at introducing
American customs.括号里可以填being aimed吗？可以的话两者有什么区别？只有表示“正在被….”意思的时候才能用be being done这个短语吗？像be加过去分词加介词这种结构的非谓...
I will have to take several lessons of you ______ I CAN expect to do this on the computer on my own.A. while B. when C. before D. once答案为C，请问是什么意思？while 不可以么？意思挺通顺的。