Ⅰ.evening的意思是“傍晚、晚上”，指从晚餐至就寝这段时间，如：
① I must start by tomorrow evening. 我至迟到明天傍晚必须动身。
② We have a film every Saturday evening. 我们每星期六晚上都有电影。
Ⅱ.night的意思是“夜、夜里、晚上”，指从日落到日出或从黄昏到拂晓这段时间。如：
① They spent the night in the forest. 他们在森林里过夜。
② We sleep during the night and work during the day. 我们夜里睡觉，白天工作。
③ We saw the play on the first night. 这戏第一晚上演我们就看了。