?外出的英文翻譯是 "going out"。

用法：表示離開家或辦公室，到外面的場所去。

例句：

1. 我今天要外出開會，晚上才能回來。

I have a meeting to attend today, I won't be back until tonight.

2. 周末我喜歡和朋友一起外出旅行。

I like to go out and travel with friends on weekends.

3. 他經常外出打工，掙錢養家。

He often goes out to work and earns money to support his family.

4. 媽媽我一個人外出，總是要我有人陪同。

My mom doesn't allow me to go out alone, she always wants me to have someone with me.

5. 外出時請記得關好門窗，不要讓小偷進來。

Remember to lock the doors and windows when you go out, don't let thieves come in.

同義詞及用法：

1. Go outside: 表示離開室內環境，到室外去。如：I need some fresh air, I'm going outside for a while.

2. Step out: 表示暫時離開某個地方。如：Please wait for me here, I'll just step out for a minute.

3. Leave the house/office: 表示離開住處或辦公室。如：I left the house early this morning and didn't come back until late at night.

4. Head out: 表示準備離開某個地方。如：We should head out soon if we want to catch the train.

5. Venture out: 表示冒險或冒險前往某個地方。如：I'm not sure if I want to venture out in this storm.