fool around

闲荡，浪费时间

follow-through, follow-up, follower, following, folly, foment, fomentation, fond, fondant, fondle, fondly, fondness, fondue, font, food, food processor, food value, food-chain, foodstuff, fool, fool with, foolery, foolhardiness, foolhardy, foolish, foolishly, foolishness, foolproof, foolscap, foot, foot-and-mouth, foot-and-mouth (disease), foot-bridge, foot-fault, foot-note, foot-slog, footage, football, football pitch, footbrake,