-（速度高;走路、做事等费的时间短）fast;quick;rapid;swift;speedy:bequickinaction;动作快

veryfast;快极了

-（赶快;从速）hurryup;makehaste:Hurryin,children.It'sraining!孩子们，快进来，下雨啦!

Bringthedoctorinhaste.快把医生请来。

-（速度）speed:Howfastcanthiscargo?这车能跑多快?

-（灵敏）quick-witted;ingenious:quickofeyeanddeftofhand;眼明手快

Hehasaquickmind.;He'squick-witted.;Heunderstandsthingsquickly.他脑子快。

-（刀、剪、斧子等锋利）sharp;keen:asharpax(e);快斧

Thisknifeisverysharp.这把刀很快。

-（爽快;痛快;直截了当）straightforward;forthright;plainspoken:straightforwardandoutspoken心直口快

-（愉快;高兴;舒服）pleased;happy;gratified:totheimmensesatisfactionofthepeople;大快人心

clapandcheer;拍手称快