A fresh egg will sink and an old egg will float.
新鲜鸡蛋会下沉，旧鸡蛋会浮起来。
Most float on water only a short time before they tire, sink, and drown.
大多数浮在水面上的时间很短，之后它们就会疲劳、下沉、淹死。
We tested 20 different objects to see if they would sink or float.
我们测试了20种不同的物体，看他们是否会沉或浮。
We concluded that some objects sink or float depending on what they are made of.
我们的结论是：物体下沉或浮取决于他们的材质。
Let me or float or sink, be high or low.
让我浮浮沉沉，或高或低。
Whether an object will sink or float on water depends on its density.
物体在水上是沉是浮，这取决于它的比重。
我总是沉下去，从没浮起来过！
我总是沉下去，从没浮起来过！
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