狄氏剂与艾氏剂有关,对蚯蚓的毒性是相似的.Dieldrin is related to aldrin, and its toxicity to earthworms is similar.艾氏剂和氯丹都是重要的杀虫剂.Both Aldrin and Chlordane are valuable insecticides....
Eachband everybare generally used as determiners before singular countable nouns.一般都作限定词,用于单数可数名词之前.The word “person” is a countable noun.person这个词是个可数名词。Is this word a countable noun or an uncountable noun?一般说来,这里我们用代词来...
Whereas West Germans drink wine, their Eastern cousins prefer Schnapps.西德人喝葡萄酒，而他们东德的兄弟姐妹则喜欢喝杜松子酒。She took them to visit her sedate, elderly cousins.她带他们去拜访她那些不苟言笑的表兄表姐们。They were distant cousins.他们是远房表亲。...