work in 通常是指工作於某個行業或領域
I work in education field. 我從事教育
work for為…工作; 為…做事
I have worked for Cindy for seven years. 我替Cindy工作已經七年了。
work at 努力獲得某事
He’s working at controlling his temper. 他正是著努力控制他的脾氣。
You’ll never learn Spanish if you don’t work at it.
如果你不下點真功夫，你將永遠無法學習西班牙文
work at 地方 在某地方工作 從事於
I work at a restaurant. 我在餐廳從事工作。
Work out（運動 / 解決問題）
You can work out the problem by yourself. 你可以自己解決那個問題。
I work out regularly to keep fit. 我經常努力鍛鍊身體以保持健康。
Work _____ in （把…安排進去）
to manage to do something or see someone in a short period of time or when you are very busy
squeeze sb/sth in 將某人排進緊湊的行程。
I’m very busy this week but I could squeeze you in at 2:00 on Tuesday. 我這周非常的盲但我可以把你排進星期二下午兩點的行程。
Today we are busy, but we can work you in. 今天我們很忙，但我可以把你排進去。