plus的英文释义Noun 1. a useful or valuable quality
2. the arithmetic operation of summing; calculating the sum of two or more numbers;
the summation of four and three gives sevenfour plus three equals sevenAdjective 1. on the positive side or higher end of a scale;
a plus valuetemperature of plus 5 degreesa grade of C plus2. involving advantage or good;
a plus (or positive) factor