1、please enjoy your meal.
meal
英 [mi:l] 美 [mil]
n.餐，饭;进餐（时间）;〈英〉一次挤奶量;谷物粗粉（用作饲料或加工面粉）
vi.进餐
Sorry to keep you waiting and enjoy your meal.
耽搁您的时间，真是抱歉。祝您用餐愉快。
2、Please enjoy yourself.
enjoy yourself
英 [inˈdʒɔi jɔ:ˈself] 美 [ɛnˈdʒɔɪ jʊrˈsɛlf]
玩的开心、玩得高兴，请自便，请随意
Anyway, please enjoy yourself.
不管怎样，好好享受吧！
3、Please help yourself .
If you are hungry, please help yourself.
你若饿了，请您随便吃。
4、Please take your time and enjoy yourself.
take your time
英 [teik jɔ: taim] 美 [tek jʊr taɪm]
从容不迫
'Take your time,' Cross told him. 'I'm in no hurry.'
“慢慢来，”克罗斯对他说，“我一点都不急。”
5、Please enjoy your lunch/dinner.
dinner
英 [ˈdɪnə(r)] 美 [ˈdɪnɚ]
n.晚餐;宴会;正餐，主餐
Would you like to stay and have dinner?
你留下来一起吃饭好吗？
