1.be supposed to 應(yīng)該
I'm supposed to be there at ten.
我十點鐘必需到那兒。
2.set foot on 踏上
Nobody has ever set foot on that island.
沒有人曾經(jīng)登上過那個島嶼。
【拓展】set foot in 進(jìn)入; 踏進(jìn)
3. first off 固定搭配,意為“ 首先, 起先”
First off, let's see how much it'll cost.
首先,讓我們看看要花多少錢。
【拓展】first of all 首先
4. add up 說的通
His story just doesn't add up he must be lying.
他說的前后不一致,他一定撒謊了。