Bamboo is light because it is hollow.
竹子很轻，因为它中间是空的。
The long stem of bamboo is hollow, which makes them light and strong.
竹子长长的茎是空的，这使它很轻很结实。
Bamboo is a sort of hollow plant.
竹子是一种中空的植物。
竹子是中空的。
Bamboo is hollow, which makes it light.
竹子是空心的，这使得他很轻。
竹子是中空的。
The stems of bamboo are hollow, which makes them very light.
竹干是空心的，所以很轻。（结果）
Bamboo is hollow, which makes it very light.
竹子是空的，所以很轻。
Bamboo is hollow inside, which makes it light to carry.
竹子中间空，这使得它很轻，容易携带。
Bamboo is hollow inside, which makes it light to carry.
竹子中间空，这使得它很轻，容易携带。
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