useful
adj
1 that can be used for some practical purpose; serviceable or helpful 实用的; 适用的; 有用的; 有益的; 有帮助的
a useful gadget, book, hint, acquaintance 有用的小机械、 书、 线索、 熟人
do sth useful with one's life 尽自己毕生精力做些有益的事
Videos are useful things to have in the classroom. 教室里有录像设备是很有助益的.
2 (infml 口) competent or capable 能干的; 有能力的
He's a useful member of the team. 他是该队的主力队员.
3 (idm 习语) come in handy/useful => handy. ,make oneself `useful help by performing useful tasks 做些有用的事来帮忙
My nephews tried to make themselves useful about the house. 我的侄子都想帮我收拾收拾房子.
minepron. (I的所有格)我的(东西);
n. 矿;矿井;地雷;水雷;
vt.& vi. 在…中开采,开采;
vt. 在…中[下]布雷;以地雷[水雷]炸毁;
sparevt. 节省,俭省;不用,抽出,省掉;宽恕,饶(命),救命,使某人免遭(麻烦等);出让,割爱,分让;
adj. 多余的,剩下的(钱等),空闲的(时间等);预备的,备用的,替换用的;多余的,瘦的,少量的;薄弱的,简陋的,粗陋的;
n. 备用零件,备用轮胎;节省,俭省;〈美〉(头两个球把十柱打得)全倒;预备品,替换品;
vi. 节约;节省;饶恕;宽容;