- 不好意思,现在线路繁忙。
Sorry, the line is busy now.
- 不好意思,这本书已经卖完了。
Sorry, the book is out of stock.
- 不好意思,请问这条路通往地铁站吗?
Excuse me, but is this the right way to the subway station?
- 我这么迟才回信,真不好意思。
Excuse me for not having answered your letter sooner.
- 不好意思,我失陪一下。
Will you excuse me for just a moment?
- 不好意思,我要走了。
I am afraid I must be going now.
- 不好意思,我爸爸不在家。
I am sorry father is out.