Are you sitting in a swivel office chair as you read this article ?
你现在正坐在旋转办公椅上看这篇文章么？
And the scoops swivel out of the way if they encounter anything solid , so the dredge does not destroy such protuberances .
同时，半球铲子在遇到任何固体障碍时会旋转避开，因此拖网也不会破坏这些海底环境。
This forces a driver to swivel shoulders and head , so that before opening the door you can see if there is a bike coming from behind .
这就迫使司机不得不旋转肩膀和头部，以便在开门之前可以看清是否有人骑自行车从后面过来。
Specs include a waterproof keypad , swappable rubber skins , 21:9 180-degree swivel touch screen that make it an ebook , tablet and notebook in one go .
