"the summation of four and three gives seven" "four plus three equals seven"
"a plus value" "temperature of plus 5 degrees" "a grade of C plus"
"a plus (or positive) factor"
A compound of one equivalent of hydrogen plus two of oxygen.
The Second World War, an unbelievable thirty-plus years ago.
That meant me plus Billy to drive me. It was a two-part job.
We've both lost a day's wages plus all that fare money.
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)