单词	power pack
释义	power packˈpower ˌpack noun [countable] Examples EXAMPLES FROM THE CORPUS Sometimes I am a real power pack of efficiency; then I hit a bad patch. something that is easily carried from which a piece of electrical equipment can get power, for example a battery
随便看	yardstick yarmulke yarn yarn bombing yashmak Yassin, Sheikh Ahmed yaw yawn yaws y-axis yay Y chromosome yd ye yea Yeager, Charles (Chuck) yeah year yearbook yearling year-long yearly yearn yearning year-round

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