The phrase "Why not go out for dinner?" can be translated into Chinese as "为什么不出去吃晚饭呢?"

This is a common question asked to suggest going out for a meal, usually with friends or family. It is a casual, friendly suggestion and is often used in everyday conversation.

Here are a few examples of the phrase in use:

Example 1:
Person 1: "What are you doing for dinner tonight?"
Person 2: "I was thinking about ordering in."
Person 1: "Why not go out for dinner instead?"

Example 2:
Person 1: "It's such a beautiful night, we should do something fun."
Person 2: "Like what?"
Person 1: "Why not go out for dinner and catch a movie?"

中文翻译:

例 1:
人 1: "今晚你晚餐打算做什么?"
人 2: "我想点外卖。"
人 1: "为什么不出去吃晚饭呢?"

例 2:
人 1: "天气多好啊, 我们应该做点有趣的事。"
人 2: "像什么?"
人 1: "为什么不出去吃晚饭, 然后去看电影呢?"