nonetheless
adv. 虽然如此,但是
1.Nonetheless, because of our low starting point, China is still one of the
world's poor countries.
但是由于底子太薄，现在中国仍然是世界上很贫穷的国家之一。
2.There are nonetheless many reasons to be concerned about the possibility of
future financial crises.
然而，仍存在很多理由为将来可能发生的金融危机而担忧。
nuclear
adj. 核的, 原子核的;使用或生产核能的
1.He's very interested in nuclear physics.
他对核物理学非常感兴趣。
2.A nuclear reactor is the apparatus in which atoms are split.
核反应堆是分裂原子的装置。
offspring
n. 子女, 子孙, 后代;(动物的)崽
1.John is her only offspring.
约翰是她惟一的孩子。
2.How many offspring does a lion usually have?
一只狮子通常能生多少小狮子?
opponent
n. 对手, 敌手;反对者
联想：oppose 反对
opponent 对手，反对者
compose 组成
component成分，部件
1.He beat his opponent in the election.
他在选举中击败了对手。
2.She is one of the strongest opponents of tax reform.
她是税收改革的最强烈的反对者之一。
3.With one blow he knocked his opponent down.
他一拳把对手打倒。
optional
adj. 可选择的, 非强制的
1.The goods are optional, but only one.
这些物品是可以任选的, 但只能选一个。
2.Is English an optional lesson, or a required course for each person?
英语是选修课还是每个人必修的课程？
3.Formal dress is optional.
是否穿礼服自便。
