1. I guess I should be going.
這里用了I guess,表示“我想...”,而不是“我猜...”,這樣就比單用I should be going較為委婉,是口語中常用的表達方式;
I guess I could come over
我想我能來。
2.try to“試圖做某事”(具體實現與否不確定),而manage to則是“設法,達成”的意思;
Don't try to impose your wishes on us.
不要試圖把你的愿望強加給我們。
How do you manage to do such a thing?
你是怎么設法做這樣的事?