..it can vanish. 有时稍纵即逝

39. For now, her work here is done.
    如今 雌性树蛙的工作已经完成
40. She'll be back next year when the heavy rains return.
    它将在明年大雨时分如期归来
41. As quickly as freshwater appears...
    淡水的出现
42. ..it can vanish.
    有时稍纵即逝
43. Southeast Sri Lanka.
    斯里兰卡东南部
44. It's the middle of the dry season.
    正当旱季中期
45. This is the only remaining water hole for miles around.
    方圆数里内 这是唯一一处水坑

来自《行星地球 第三季 第四集 Planet Earth S03E04 淡水》第 42 行