1、觀察是最好的老師。
offense is the best defense.
2、進(jìn)攻是最好的防御。
old friends and old wines are best.
3、陳酒味醇，老友情深。
old sin makes new shame.
4、一失足成千古恨。
once a man and twice a child.
5、一次老，兩次小。
once a thief, always a thief.
6、偷盜一次，做賊一世。
once bitten, twice shy.
7、一朝被蛇咬，十年怕井繩。
one boy is a boy, two boys half a boy, three boys no boy.
8、一個(gè)和尚挑水喝，兩個(gè)和尚抬水喝，三個(gè)和尚沒(méi)水喝。
one cannot put back the clock.
9、時(shí)鐘不能倒轉(zhuǎn)。
one eyewitness is better than ten hearsays.
10、百聞不如一見(jiàn)。
one false move may lose the game.
