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旁切圓心, 旁心
??? 情景例句
and you won't get so many colds anymore.
你就不會(huì)老患感冒了。
To play a trick
戲弄
Before long, the noise dropped completely and the boat began to drift gently across the water.
沒過多久，噪音便徹底消失，快艇開始在水面上慢悠悠地漂流。