爹father 娘mother 哥哥弟弟brother 姐姐妹妹sister.

long before 和before long

long 在前(long before)，“很久前”， long在后(before long)，“不久后”。

巧记lie和lay

躺 lie,lay,lain,lie in bed again;

撒谎 lie,lied,lied,don't be a liar;

产蛋 lay,laid,laid,a hen laid an egg;

放置 A loy picked it up,and laid it in the bag.