(1) The professor's flight was delayed again, presumably because of the bad weather.
(2) 例子: Everyday I have to face a lot of work tasks to be completed, which would presumably last till the end of the year.
场景: 年底最是加班时。
(3) 同义词: presume/assume/
suppose/guess
(4) Takeaways:
关门歇业: go out of business
租金: the rent prices
裁员: lay-offs