不足为外人道: no need to let others know; be not worth telling this to outsiders; this is not to be mentioned.; this is strictly between ourselves
也: Ⅰ副词1.(表示同样) also; too; as well; either; likewise 短语和例子不哭也不闹 (a child) neither cries nor makes any trouble; 你不去, 我也不去 。 if you're not going, i'm not going either. 他说法语, 也会说西班牙语 。 he speaks
