洪恩在线有声双语词典：jam

不可数名词

n.[U] 果酱

food made with fruit and sugar cooked together

·	I'd like some jam on my bread, please.
	劳驾，我要些果酱抹在面包上。

可数名词

n.[C] 拥挤；塞满；阻塞

crowd of things or people that cannot move because there are too many

·	We were delayed by a traffic jam on the highway this morning.
	今天早上我们给公路上交通阻塞耽搁了。

	n. 拥挤
		cram crowd crush heap load press push squeeze stuff