Sam:Mother,can you buy me a new bike? 妈,你可不可以买一辆新的自行车给我? Mother:No,Sam.I can't. 不可以,萨姆. 我办不到. Sam:But all my friends have new bicycles. 但是我所有的朋友有新车. Mother:You can ride their bikes. 你可以骑他们的车子呀！ Sam:Why can't I have a new bike? 我为什么不能有辆新车呢? Mother:Because money doesn't grow on trees. 因为钱不会长在树上嘛. （喻挣钱是很辛苦的.）
