For retailers, who last year took in 24 percent of their revenue between Thanksgiving and Christmas, the cautious approach is coming at a crucial time这句话中的the cautious approach is coming at a crucial time如何理解?不懂
名词解释:portfoliothe entire collection of investments in the form of stocks, bonds, or certificate of deposits for purposes other than controlling疑问:请问collection在文中什么意思?
ICC, which was established in 1919, had as its primary objective facilitating the flow of international trade at a time when nationalism and protectionsim posed serious threats to the world trading system.请教;此处as用法,能省略吗?
Advertising is the largest expense of most marketing plans, with public relations following in a close second and market research not falling far behind.with在这里表示什么意思,在句中做什么成份?
As of Wednesday morning, the United States, which is leading the world in terms of confirmed cases, has reported 189,510 infections, showed the tally updated by the university's Center for Systems Science and Engineering.
has reported 和showed 分别引导什么成分
Teachers in every discipline assigned books to their students and used paper to keep track of which student had which book.请问"which student had which book"是什么语法成分?
A bank is the place where they lend you an umbrella in fair weather and
ask for it back when it begins to rain.这里的先行词是the place,是一个单数, 为什么后面从句的主语就用they?