如何使用 "attain" 造句

1. Some 20 % of students attain these grades .
大概20%的学生可以达到这个标准。
2. Trees do not grow to the sky and markets do not attain infinite value .
树不会长到天上去,而市场也不会达到无限价值。
3. A constitutional amendment requires a two-thirds vote of both houses of congress , which looks difficult to attain .
宪法修正案需要国会参、众议院三分之二席次的支持,乍看之下很难达到。
4. He runs the danger of prescribing too tightly what schools should do , as well as the standards they should attain .
他对学校应该做什么及应该达到什么样的水平追得太紧。
5. South korea has essentially reached the level of wealth that it can attain by relying on exports to turn a rural economy into an industrial one .
韩国通过出口方式将一个农业经济体转型为工业经济体,但已基本达到依靠这一战略所能触及的最高富裕水平。