福克斯词典 \

英汉例句

\ 负号的例句（负号在句子中的用法）

负号的例句（负号在句子中的用法）

He seems to have mistaken a minus for a plus. 他似乎把负号误作正号了。
She carefully noted whether her math problems had pluses or minuses before she began her work. 她开始做题前,很细心地看题目数字前是正号还是负号.

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