Note - position tank so that there will not be a shadow from your hand when dropping the fruit.
注意：摆放水缸应选择合适的角度，以免扔水果时手的阴影出现在画面里。
Shadow professionals in fields of primary interest toobserve work first hand.
亲自去自己感兴趣的实习领域观察工作。
Take a close look at the shadow cast by your hand in direct sunlight.
仔细观察阳光直射下你的手所投下的阴影。
Take a close look at the shadow cast by your hand in direct sunlight.
仔细观察阳光直射下你的手所投下的阴影。
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