这组词都有“共同的,相互的”的意思,其区别是:
reciprocal: 着重互惠,有来有往。
joint: 强调至少两人或两方共同占用,侧重指一个统一体。
mutual: 着重彼此共有或共享,局限于双方的关系。
common: 侧重两人或多人共有共同,但不暗示彼此间存在的等价关系。
这组词都有“限制,局限”的意思,其区别是:
confinement: n.限制,囚禁(于某地或某种境地)。
➤ The prisoner was sentenced to three months' solitary confinement.
那犯人被判处单独监禁三个月。
confinement: limitation, restraint
concentrate: v.集中,集中精力(后接on,宾语可以是具体或抽象的东西);浓缩,压缩。
➤ During exams, students concentrate hard on answering the questions.
考试期间,同学们集中精力回答问题。
restraint: n.克制,抑制;约束措施。
➤ Even though the mother was very angry, she acted with restraint and didn't yell at her child.
即使母亲很生气,她仍克制自己没有向孩子大吼。
focus: v.集中(于某事物);将(注意力等)集中于……(后接on,宾语一般不是具体的东西)。
➤ Please focus your minds on the following problem.
请集中考虑以下问题。
limitation: n.限制,局限;(能力的)缺点,弱点。
➤ That employee has limitations on what work he can do.
那个雇员能做的工作有限。