重點講解：
1. first of all
第一；首先；
eg. First of all she just smiled, then she started to laugh.
最初她只是微笑，后來才放聲大笑oBaF!,YkXx=x2。
eg. First of all, you should know what profession suits you.
首先，你該知道什么職業適合你3xob;eH)R#tU~+uG。
eg. Well, first of all we can't possibly spare the time.
你看，最主要的是我們實在抽不出時間S,xeZv+.9q=Gr。
2. let's see
口語常用，（表示試圖記起某事或找到某物）讓我想一想，讓我看看；
eg. Let's see, they're six — no, make that five hours ahead of us.
讓我想一想，他們比我們早 6 個——不，就算是早 5 個小時完成IZ#TW;gMP1=p!(U。
eg. Oh, let's see. It'll be about 3:30 before we have anybody free.
哦，讓 我 想想bsmJH3-A24!;J。大概要到3:30我們才有空C9(l!Lj,d(.。
eg. Let's see, our flight number is CX360 monitor says our flight is on time.
讓我看看，我們的航班號是CX360，顯示屏上顯示我們的航班準時到了e~;(59hrRYt。