例句： Books are avenues to knowledge.

例句： I feel very lonely without my dog.

例句： Next, you need to analyse the metrics.

例句： They are mad about football.

例句： Living separately from parents after marriage is all the mode today.

例句： a believer in human progress.

例句： She has studied the cultures of Oriental countries.

例句： Many workers in the sorting office lost their jobs when an automatic sorter was introduced.

例句： This encyclopedia is truly a compendium of knowledge.

例句： Laugh, and the world laughs with you; Weep, and you weep alone.