Witnesses said they believed that he had slipped, butzoo officials said he had jumped into the moat, which is about 18feet deep.
目击者表示,他们认为他是滑倒掉进了大约18英尺深的壕沟,但动物园的官员却说他是跳进去的。
The draining of urban water mainly depended on pipelines to discharge rainwater and domestic waste water into the moat outside a city.
城市的排水主要依靠管道将城中的雨水和生活废水排往城外的护城河中。
There used to be many fishes swimming freely in it. But now none exists. Dirty water from the paper factory pours into the moat directly.
以前曾经在水里自由自在地游来游去的鱼儿都不见了,脏水直接从造纸厂倒人护城河。
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