21. I couldn't get through.(電話打不通。)
22. I got sick and tired of hotels.(我討厭旅館。)
23. Be my guest.(請便、別客氣)
24. Can you keep an eye on my bag?(幫我看一下包好嗎?)
25. Let's keep in touch.(讓我們保持聯系。)
26. Let's call it a day[決定或同意暫時或永久停止(進行某事)].
27. I couldn't help[避免;阻止] it.(我沒辦法。)
28. Something's come up[發生/出現].(有點事/出事了)
29. Let's get to the point[要點/核心問題].(讓我們來談要點。)
30. Keep that in mind.(記住那件事。)