During a research experiment a marine biologist placed a shark into a large holding tank and then released several small bait fish into the tank.
在一個(gè)研究實(shí)驗(yàn)中,一個(gè)海洋生物學(xué)家把一條鯊魚放進(jìn)一個(gè)大的水箱中,然后投放了一些小的誘餌魚進(jìn)去。
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