twist angle of strands

例句：

1. 1. She twisted the rope to get the door open.
   她把绳子扭来打开门。
2. 2. The snake twisted its body to escape.
   蛇扭动身体试图逃脱。
3. 3. The car twisted when it hit a pothole.
   汽车在碰到一个坑时扭了一下。