例句-1: The brain drain to Europe and America has been a serious problem for developing countries. But the situation is changing for countries which have managed a high rate of economic growth -- more of their professionals living abroad are going back home these days.
例句-2: There used to be a brain drain in Taiwan when most overseas students from there wanted to stay in America after graduation. But now it's different. The majority of them prefer to go back to Taiwan.
例句-3: The president of our company is a young man who likes to hear fresh ideas. So he's organized a brain trust of the professors he had in college who meet once a month to give him advice.
例句-4: The director of our institute makes us feel useless because he only listens to his own brain trust. He totally ignores the ideas from those who work for him in the institute.