1. rebuttal n. 反驳,反证
They made a clause-by-clause rebuttal of the letter.
他们对这封信逐句作了反驳 。
2. wield v. 行使,施加
The trade unions were afraid the government would wield a big stick over them.
工会担心政府会采了严厉的措施来对付他们 。
3. define v. 规定,定义
Definitions should not be more difficult to understand than the words they define.
词语的定义不应比所解释的词语更难理解 。
4. sole a. 独占的,唯一的
The sole redeeming feature of this job is the salary.
这份工作唯其薪水尚可弥补一切之不足 。
5. observation n. 观察,观察力
The fault escaped observation (ie was not spotted) for months.
这故障数月来未引起注意 。