fall through crack
从裂缝中掉落
以上为机器翻译结果，长、整句建议使用 人工翻译 。
You shall not fold your wings that you may pass through doors, nor bend your heads that they strike not against a ceiling, nor fear to breathe lest walls should crack and fall down.
你们不应只为穿过房门而敛起羽翼，不应以防止撞到天花板而低下头颅，也不应因担心墙壁破裂坍塌而屏住呼吸。
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