1 ) I'll believe it when I see it.眼见为实。
e.g: He claims he can run 10 km without stopping. I’ll believe it when I see it.
2) l'll get back to you on that.我稍后再回复你。
e.g: Let me check my schedule and I’ll get back to you on that.
3) That's more like it.这才对嘛。
e.g: Now you’re smiling! That’s more like it.
4) I can't take it anymore.我再也受不了了。
e.g: I can’t take it anymore, I need a break.
5) You're on the right track.你在正确的方向上。
e.g: Your answer isn’t perfect, but you’re on the right track.