你看起来真年轻，像30岁。翻译成英文

You look like really young, likes 30 years old

You look really young, like 30-year-old

You look so yong as if you were 30 years old.
虚拟语气
2楼同意的是偶的说法，我又改了一下本回答被提问者采纳

同意楼上的!