I can't finish this.
我吃不完了。
I can't eat another bite.
我一口也吃不下了。
I really like dessert, but I can't eat it now, can I get it to go?
我非常想吃甜点,但是现在吃不下了,我能带走吗?
Do you have a doggie bag?
有打包带吗?
Do you have something I can put this into?
有没有什么东西可以把这个放进去?
Could you put the leftovers in something, so I can take them home.
你能找个东西把剩下的菜放进去吗?这样我可以带走。
Dialogue:
A: I can't eat all of this, can you wrap up what's left to go?
我吃不完了,你能把剩下的给我打包吗?
B: Certainly, I'll take care of that.
当然,我会帮你弄好的。