单词	ehlpful
释义	ehlpful adj.有帮助的,有用的
随便看	single masted s/r machine single-mast s/r machine single matthaw walker knot single means of disease control single measurement single-measurement single measuring range single mechanical end face seal single mechanical seal single-media single-medium single melt ingot single-melt ingot single-member constituency single member district single-member system single-member systems single memorial single meniscus single-mesh singlemesh single-mesh filter single message mode single metal electroplating singlemicroscop 砟砠砡砢砣砥砦砧砩砪き【貴】き【起】き【軌】き【輝】き【飢】き【騎】き【鬼】き【黄】きあいきあい【気合い】