find one's feet = to become comfortable doing something = cảm thấy thoải mái khi làm gì
to become familiar with and confident in a new situation
Although I had some difficulties in living far from home as first, I soon found my feet.
Did it take you long to find your feet when you started your new job?
(C2) sad = unhappy
She's a bit down in the dumps because she failed one of her exams.
When I moved to another school, I was really down in the dumps.
average, ordinary and not special or exciting in any way = hoạt động bình thường
My computer was very run-of-the-mill yesterday.
He gave a fairly run-of-the-mill speech.
without any hesitation; instantly = ngay lap tuc
If you do something at the drop of a hat, you do it immediately without stopping to think about it.
Không ngần ngại, ngay lập tức
Ex: People will file lawsuits at the drop of a hat these days. Ngày nay, người ta sẽ trình diện vụ việc kiện cáo mà không cần phải suy nghĩ nhiều.
If you need help, just call on me. I can come at the drop of a hat.