grass的复数形式是加es，即grasses。grass可作名词和动词，作为名词时，中文翻译为“青草”、“牧草”、“禾本科植物”、“草地”、“草场”；作为动词时，中文翻译为“向警方告密”、“告发”。
grass的中文释义及用法介绍
1、可作名词，意为草;青草;牧草;禾本科植物;草地;草坪;草场;牧场。
例句：The dry grass caught fire.
干草着火了。
Don't walk on the grass .
勿践踏草地。
I started smoking grass when I was about sixteen.
我大约16岁的时候开始吸大麻。
Flatten the surface of the grass with a roller.
用碾轧机把草轧平。
The forage grass disease is a complex and big system.
宁夏牧草病害是一个复杂大系统。
Some grasses furnish us with food.
有些禾本科植物供给我们食物。
The runway is simply a strip of grass.
所谓跑道不过是一长条草地而已。
With one accord they turned and walked back over the grass.
他们步调一致地转身走过草坪。
The ponies will go to grass as soon as the better weather comes.
天气一转好，这些小马就去牧场。
2、可作动词，意为(向警方)告密，告发。
例句：His wife wants him to grass on the members of his own gang...
妻子要他向警方告发他所在团伙的成员。
He was once a professional grass.
他曾是一个靠告密为业的人。
His friends had begun to suspect that he was a grass.
他的朋友开始怀疑他是告密的人。
You wouldn't grass up an old mate, would you?
你不会告发老朋友的，对吗？
