Why doesn't he carry a hard and heavy shell?
他为什么不带一个又硬又重的壳呢？
But a conch has to carry a heavy shell wherever it goes and its size is limited by the shell's size.
然而海螺不管到哪里都要背负着它那沉重的外壳，它的生长也受到外壳的局限。
But a conch has to carry a heavy shell wherever it goes and its size is limited by the shell's size.
然而海螺不管到哪里都要背负着它那沉重的外壳，它的生长也受到外壳的局限。
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