The bats left Mexico a few days earlier to escape the heat of summer 蝙蝠数日前离开墨西哥以躲避酷暑
When full, a saguaro stem can store up to five tonnes of water 吸饱水后 弁庆柱的茎干中 已储存了5吨左右的水
After a rainstorm the saguaro's long shallow root system sucks up the water 暴风雨过后 弁庆柱 用又长又浅的根系吸收水分
and they absorb liquid like a sponge. 它们像海绵一样吸收着水汽
The secret is a cold sea current that runs parallel to the land. 答案就是一股与陆地平行的寒冷洋流
but they nonetheless need a regular supply of water. 但它们仍须定期补充水
and this is a real drain on the kangaroo's body fluids. 袋鼠真正排放出去的体液也就是这些
where there is a network of blood vessels close to the surface of the skin 那里的血管网比较贴近皮肤表层
Soon the heat will reach a critical point. 热度很快就会达到临界点