On the 30th day
三十晩───Thirty minutes;上───upper
about thirty minutes' walk.───步行大约30分钟。
We'll reassemble in the parking lot in thirty minutes.───30分钟后，我们将在停车场再一次集合。
Put the onions and ginger in the oven and let them roast for thirty minutes.───把洋葱与生姜放入烤箱中烤30分钟。
We also meet with career services, who, in about thirty minutes, ensured that we weren't lulled into a false sense of complacency.───我们也与职业服务会谈，在约三十分钟的时间内向我们保证我们肯定不会沉醉与自满之中。
Teachers are observed in the classroom five times a year for at least thirty minutes each time.───它每年会对教师课堂表现进行5次考察，每次不低于30分钟。
The Mayo Clinic says even going to bed thirty minutes earlier can help some children stop wetting the bed.───梅奥临床讲义甚至说三十年之前上床睡觉能帮助一些孩子停止变湿那床。
Thirty minutes of squash gives you as much exercise as an hour of any other game.
We set a time limit of thirty minutes for the test.
The bike can easily be assembled in thirty minutes.
Then let it rest for twenty to thirty minutes.
It had lasted thirty minutes longer than usual.