Professor Marshall said: "they are slow moving, efficient swimmers because they exist in a world where food is sparse and they need to conserve energy."

马歇尔教授说：“它们是行动缓慢且有效的游泳者，因为它们生活在食物稀缺的世界，需要保存能量。”

youdao

The flume was fixed to a speed of 1:40 /100m so no matter what, the swimmers had to maintain that speed, they couldn't slow down or speed up.

水槽的流速被固定在每100秒100米。 这样无论水平怎样，游泳者都不得不保持这个速度，既不能快也不能慢。

youdao

The fastest swimmers are the ones who slow down the least.

游得最快的是哪些减速最小的。

youdao

He concluded, "There was evidence that Greenland sharks were slow swimmers, but this study really proved just how slow they were!"

MSN: Presenting the world's slowest shark - Technology & science - Science - DiscoveryNews.com | NBC News

Ships are one of the biggest threats to right whales, which are slow swimmers and hang out near the surface of the water, where they're susceptible to being hit.

CNN: Spotting endangered whales from the skies