- they will all drop to the water surface,
便会一起落到水面 - release their eggs and die.
产下卵 然后死去 - Malawi may look like an inland sea,
马拉维湖看起来像大海一样辽阔 - but it's dwarfed by the world's largest lake -
但它远比不上世界上最大的湖泊 - Baikal in Eastern Siberia.
东西伯利亚的贝加尔湖 - 400 miles long and over a mile deep, Baikal contains one fifth of all the fresh water found in our planet's lakes and rivers.
贝加尔湖长400英里 深度超过1英里 其中淡水储量占到了全球江河湖泊淡水总量的1/5 - For five months of the year it's sealed by an ice sheet over a metre thick.
每年中总有5个月 湖面被1米厚的冰层覆盖
but it's dwarfed by the world's largest lake - 但它远比不上世界上最大的湖泊
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