查询词典 swiftlets

Like bats, they use echolocation to navigate：和蝙蝠一样,它们也利用回声定位来导航

They're cave swiftlets.|它们就是洞金丝燕 | Like bats, they use echolocation to navigate.|和蝙蝠一样,它们也利用回声定位来导航 | We need lights to see what's going on,|我们必须有光才能看清前方的路

but in the pitch black, the swiftlets manage unerringly：但是金丝燕却能在黑暗中 准确无误地

We need lights to see what's going on,|我们必须有光才能看... | but in the pitch black, the swiftlets manage unerringly|但是金丝燕却能在黑暗中 准确无误地 | to locate their individual nesting sites,|到达自...

They're cave swiftlets：它们就是洞金丝燕

to find their way through the cave passages in total darkness.|在漆黑一片的洞穴通道... | They're cave swiftlets.|它们就是洞金丝燕 | Like bats, they use echolocation to navigate.|和蝙蝠一样,它们也利用回声...

The pure white nests of cave swiftlets：洞金丝燕的纯白燕窝

but the rewards are great.|但却能得到丰厚的回报 | The pure white nests of cave swiftlets|洞金丝燕的纯白燕窝 | are the main ingredient of bird's nest soup|是燕窝羹的主要成分

For 500 years, people have been harvesting the nests of cave swiftlets：500年来,人们一直采集洞金丝燕的燕窝

and not only for the birds.|不仅只是针对这些... | For 500 years, people have been harvesting the nests of cave swiftlets.|500年来,人们一直采集洞金丝燕的燕窝 | It's a very risky business.|这是一项非常危险...

Hadrian Wall：哈德 城墙 / 哈德 城墙

Hadden-Cave, Philip 夏鼎基 | Hadrian Wall 哈德 城墙 / 哈德 城墙 | Haeckel, Ernst 海克尔

skilled：熟练的

skill 技能 | skilled 熟练的 | skillet 煮锅