...an encounter with a stranger... (Para. 2)
encounter: n. a meeting with someone that happens by chance
My meeting with my friend in New York was not an expected encounter. 在紐約遇到我的朋友是出乎意料的。
An encounter between you and the man you have hurt will not serve any good purpose. 與那位被你弄傷的人碰面是不會有什么好處的。
encounter: vt. meet or have to deal with (sth. bad, esp. a danger or difficulty)
The President was unwilling to encounter his judges. 總統不愿與法官們遭遇。
Even if he encounters a tiger his thinking ability usually enables him to kill the animal successfully. 即使他遭遇一只老虎，他的智力通常也能使他成功地把它殺死。