- and gram for gram are worth as much as silver.
每克燕窝的价值堪比白银 - As soon as its nest is removed a bird will immediately build another.
燕窝被摘去后 金丝燕很快又会再吐一个 - So, as long as this valuable harvest is properly controlled,
所以 只要这种利润可观的 采摘行为得到适当控制 - the colonies will continue to flourish.
燕群仍旧可以长盛不衰 - These Bornean caves are among the biggest in the world
婆罗洲的这些洞窟是世界上最大的洞穴 - and they're still getting bigger
它们仍在不断扩大 - as each year rainwater eats away a little more limestone.
因为每年雨水都会侵蚀掉少许石灰岩
the colonies will continue to flourish. 燕群仍旧可以长盛不衰
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