1. 减;减去
    You use minus to show that one number or quantity is being subtracted from another.

minus的反义词

    e.g. One minus one is zero...
           1减1等于0。
    e.g. They've been promised their full July salary minus the hardship payment.
           他们已经得到承诺，7月份的工资除去辛劳补助外将全额发放。

2. 负的;小于零的
    Minus before a number or quantity means that the number or quantity is less than zero.

    e.g. The aircraft was subjected to temperatures of minus 65 degrees and plus 120 degrees.
           这架飞机曾经在零下65度和零上120度的温度下飞行。

3. 减(指学校评分中某一等级中的“略差”，但又好于下一个等级)
    Teachers use minus in grading work in schools and colleges. 'B minus' is not as good as 'B', but is a better grade than 'C'.

    e.g. I'm giving him a B minus.
           我准备给他一个B—。

4. 失去;缺少
    To be minus something means not to have that thing.

    e.g. The film company collapsed, leaving Chris jobless and minus his life savings.
           电影公司垮了，克里斯没了工作，也失去了他一生的积蓄。

5. 不利条件；缺点
    A minus is a disadvantage.

minus

    e.g. The minuses far outweigh that possible gain...
           弊端远远大于那可能获得的收益。
    e.g. The plusses and minuses were about equal...
           利弊大致均衡。

6. 上下;左右
    You use plus or minus to give the amount by which a particular number may vary.

    e.g. The poll has a margin of error of plus or minus 5 per cent.
           民意测验有上下5%的误差率。