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2.hover vi.鸟、直升机等 翱翔；盘旋
例句：A hawk hovers in the sky.
一只老鹰在天空盘旋。
3.foster vt.培养，助长，促进；孕育；激励，鼓励
例句：The captain did his best to foster a sense of unity among the new recruits.
队长尽力培养新成员之间的团结精神。
4.uneasy adj.不稳定的
例句：The nuclear deterrent has maintained an uneasy peace.
核威慑一直使和平处于不稳定状态。
5.breakthrough n.突破点, 突破性进展, 重要的新发现
例句：Scientists have made a breakthrough in their treatment of that disease.
科学家在治疗那种疾病方面已有突破。
6.considerable adj.相当大(或多)的
例句：It is a considerable sum of money.
那是一笔数量可观的钱。
They have given the plan considerable attention.
他们已经给予这个计划以相当多的注意。
7.disarm vi.裁军
例句：It is difficult to persuade the superpowers to disarm.
要说服超级大国裁军是很难的。
8.reshuffle n.改组(尤指政治组织)
例句：The Prime Minister announced a reshuffle of his Cabinet.
首相宣布内阁改组。
The former minister was relieved of his post in last month’s extensive government reshuffle.
在上个月的政府全面改组中，前任部长被解职了。
