第1554期：尾巴摇狗，当心狗咬。
You thought you could be a cannonball. In fact, you might be only cannon fodder.
Watch out when the tail wags the dog, for the dog likes to bite the hand near its buttock.
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第294期：wag the dog
今天我们学一个美国俚语：wag the dog. 字面意
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