is a liquid like water, but it has something in it that helps clean your teeth—clean the inside of your mouth; that is mouthwash. 是像水一样的液体，但它含有洁牙的成分——能清洁你的口腔内部；那就是漱口水。

　　So, you take the mouthwash and you "pour a small amount into a cup." 因此，你拿着漱口水并“在杯子里倒入少量的漱口水。”

　　The mouthwash usually comes in, or is in, a bottle. 漱口水通常装在瓶子里。

　　This bottle, you take and you pour some mouthwash into a cup. 你拿着这个瓶子并倒一些漱口水在杯子里。

　　To pour means to take something that is liquid, like water or mouthwash, and put it somewhere else. “倒”就是把水或漱口水之类的某种液体放到另一个地方。

　　In this case, it's into a small cup. 在这个故事中，是把它放在一个小杯子里。

　　After it put it into the cup, I "swish it around for 30 seconds." 把它倒入杯子后，我“将它含在口中快速地来回移动约30秒。”

　　To swish, "swish," something around means to move it around,  快速地来回移动（swish）某物的意思是将它四处移动，

　　and we use that verb usually when talking about something that is liquid like water or mouthwash that you move back and forth very quickly. 通常我们使用这个动词是在谈论像水或漱口水一样的液体时，你将它们快速地来回移动。