Eddying
渦流, 渦流的形成
??? 情景例句
or we won't be finished by dinnertime.
要不然， 晚餐時間到了我們還做不完。
Thank you.
謝謝。
It took me over half an hour to get rid of him.
我花了半個多小時才擺脫了他的糾纏。