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Last July China's manned submersible (载人潜艇)Fendouzhe 【小题1】 (dive) 10,909 meters deep in the Mariana Trench. This is the 【小题2】 (deep) diving record for a Chinese manned submersible. The pressure underwater is very strong, 【小题3】 is like an elephant standing on the tip of your finger. Fendouzhe can carry up to three people. The egg shape makes it easier for the scientists 【小题4】 (move) around and study the sea.