至: Ⅰ介词(到) to; till; until 短语和例子自冬至夏 from winter to summer; 战斗至死 fight on till one's last breath; 截至上月底为止 up to the end of last monthⅡ副词(极; 最) extremely; most; utmost 短语和例子欢迎之至 extremely cordi
间隔: interval; space; spacing; blanking; blank; region; distance; gap; intermission 短语和例子留间隔 space out; 间隔五米 an interval of five metres; 有一天时间的间隔 with an interval of one day; 没有间隔 without inter