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.
spreadvt.& vi. 伸开;展开;(使)传播;(使)散布;
n. 范围;连续的一段时间;
vt. 涂;把…覆盖在…上(over);把…敲平;散发(气、烟等);
vi. (景色、景致)展现;传开;(人群)散开;软化;
adj. 张开的;[语言学]双唇展开的;(宝石)扁薄发光的;(文章、照片等)跨两栏(或多栏)的;