- Their mouth rotates and acts like a kind of suction cup...
嘴部转动 如同一个吸盘 - ..which they will certainly need.
这正是它们需要的 - Because the only way...is up.
华山一条路 它们必须登上顶端 - It is 30 metres to the top.
垂直落差高达30米 - They are only an inch long.
而虾虎鱼身长只有不到3厘米 - This is the equivalent of a human being scaling a waterfall
相当于人类去攀登 - over a mile high.
近两公里高的瀑布
It is 30 metres to the top. 垂直落差高达30米
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