1. But that has judgmental overtones, so I'll hold that in reserve.但這個帶有批評色彩，還是作為備用吧。

in reserve 備用

e.g: We always keep some money in reserve, just in case.我們總是存些錢備用，以防萬一。

2. Next to you, I'll look like a catch. 有你在旁邊，我更有把握了。

a catch 可托付終身的好人

3. I'll have to have you over for spaghetti some night. 我改天晚上叫你過來吃。

have sb. over 請某人到家里來吃飯

e.g: We must have you over for dinner before we leave. 在我們走之前一定要請你到家里搓一頓。

4. You can't hang out with your roommate's ex.你不能和室友的前任一起玩。

hang out with 與...出去完；與...閑逛

e.g: I don't really know who she hangs out with. 我真不知道她和誰在一起玩。