Annaso安娜
add和plus add是动词(v.)加,加起来,做加法,计算…总和If you add 4 to 5 you get 9.四加五等于九。plus 作"相加"解时,它是介词 (prep.)1.加,加上Three plus four equals seven.3加4等于7。2.外加,另有We need to consider both the advantageous plus disadvantageous factors.我们要考虑到有利和不利因素。
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