Off hand
不假思索地, 無準(zhǔn)備地
?? 詞語組成解析
off
[?:f, ?f]
prep. 從…落下;離開;從…去掉;下班;
adv. 離開;距，離;被取消;下班;
adj. 不新鮮的;不能接受;不禮貌;
n. 起跑;
v. 殺死;
hand
[h?nd]
n. 手;協(xié)助，幫助;（工具等的）把，柄;掌管;
vt. 傳遞，交給;攙扶;支持;
??? 情景例句
He's not as lucky as I am
他不像我這樣幸運(yùn)地
He is a good friend that speaks well of us behind our backs.
背后說人好話的夠朋友。
Indeed they can have a delightful surprise when they find something useful which they did not know they owned.
確實(shí)，一旦無意之中從自己的收藏品中找到某件有用的東西時，可以給人一種驚喜的感覺。