turn in

基本解释

Leaves turn in autumn.
树叶在秋天变黄。
I'll show you how to accomplish each step in turn in the next several sections.
我将在接下来的几节中依次向您演示如何完成每一个步骤。
As the long sections twist and turn in the waves they pull the rams in and out of the modules like pistons.
当长长的蛇体在波浪中扭曲翻转时，它们把滑块像活塞一样从模块中拖进拖出。

But if you are more interested in fast cars, here is a new turn in the world of motorsports.
Also we will have students doing workshops and problem-solving where the students will solve problems as a group, a group of three and turn in a common work sheet.
我们还有学生做研讨会,以及问题解决,从而学生可以以三人小组为单位,解决问题,最后上交平常的作业。
麻省理工公开课 - 媒体、教育、市场课程节选
So usually, I don't have to do much more than google, and turn in the first sentence and sure enough,
所以，我经常谷歌，输进第一句话，然后非常确信，
对于抄袭的想法 - SpeakingMax英语口语达人

For that, they may give thanks to a fortuitous turn in the political cycle.
ECONOMIST: Better safe than sorry