A more complicatedsystem is, in general, more likely than a simple system to break down.
一般来说,一个更复杂的系统比一个简单的系统更容易崩溃。
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Dolphins lack vocal cords, nevertheless creating sounds: a complicatedsystem of whistles, squeaks, moans, trills, and clicks are produced by sphincter muscles inside the blowhole.