1 Be quiet!或 Keep quiet!（请安静!）如果是更命令的语气,可直接译为 Shut up!（闭嘴!）
2 He left with deep affection in his heart.(直译为：他满怀着深情而离开了)
Despite his unwillingness to be apart,he has to leave（直译为：尽管他不想分开,他不得不走了）
He left with extreme reluctance（直译为：他极不情愿地离开了）
这句话的翻译最好能有上下文,如果没有上下文个人觉得第一种翻译表达更准确.