This is the question about which we've had so much discussion这句话中为什么要有个介词about？Everything that he said seemed quite reasonable这句话中为什么又没有介词了？介词什么时候，用什么时候不用？？
...词原形(指现在或将来)I will wait for him no matter how late he may come. 不管他来的多么晚，我都会等他。②may +完成式(指过去)We must respect him no matter what / whatever mistakes he may have made. 不管他翻过什么错误，我们必须尊敬他。-------------------...
... calmly. 我强忍怒气，尽量平静地说话。I’m
only going to say this once, so listen carefully. 这个我只讲一次，所以请认真听。Take
care not to crumple your dress by packing it carelessly. 当心不要因包装得不好而把你的衣裙弄皱了。You’ll
have to explain y...
...ly that the stability of the Black family encouraged the transmission of—and so was crucial in sustaining—the Black heritage of folklore, music, and religious expression from one generation to another, a heritage that slaves were continually fashioning out of their African and American experienc...
Professor Kuzawa is a biological anthropologist. He and other researchers used information from a long-term study of men in the Philippines. That study measured their testosterone levels in two thousand five and two thousand nine.2005年和2009年还是2005到2009年功四年？
... also voiced their concerns at meetings such as “The Flight from Science and Reason”， held in New York City in 1995， and “Science in the Age of（Mis） information”， which assembled last June near Buffalo.科学的捍卫者们也已经在一些会议上表示了他们的担忧，例...
在夸克的语法大全的p1268页有这样两个句子：He died and he
was buried in the cemetery. He was buried in
the cemetery and he died. 夸无认为，上面的两个例句显然有不同的含义。第一句的意思我明白，但第二句就不明白了。怎么会先“埋”后“死...