当老师向他走去时，一个名叫艾米丽的同学正拿着一个装满水的玻璃杯。
As the teacher is walking to him, a classmate named Emily is carrying a glass that is full of water.
这只周期性用嘴蘸取玻璃杯中水的鸟其实是一只中空的玻璃塑像。
The dipping bird is a hollow glass figure which repeatedly dips its beak into a glass of water.
步骤四：把油梨悬挂在一个装满水的玻璃杯里。
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