青草英语为grass。
词语用例：
1、the grass is(always)greener on the other side(of the fence).
(saying)草是那边绿；这山望着那山高。
said about people who never seem happy with what they have and always think that other people have a better situation than they have.
2、not let the grass grow under your feet.
（做事）不拖拉，不磨洋工。
to not delay in getting things done.
3、put sb out to grass.
(informal)迫使（年老者）退休；让某人离职。
to force sb to stop doing their job,especially because they are old.
4、a snake(in the grass).
(disapproving)阴险的人；潜伏的敌人；虚假的人。
a person who pretends to be your friend but who cannot be trusted.
5、grass sth?over.
用草覆盖某物；使长满草；在……上种草。
to cover an area with grass.
双语例句：
1、筒仓发明前，因为没有青草可以吃，奶牛在冬天产奶量减少。
Before silos were invented,cows gave less milk during winter because they had no green grass to eat.
2、研究小型暗河式沼气池以猪粪和青草为发酵原料，在适当pH值、总固体含量和碳氮比的条件下，沼气产量和单位池容产气率与温度之间的关系。
The study was carried out with pig manure and green grass as fermented raw materials,under the condition of proper pH value,total solid content and C/N ratio to find out the relationship between the methane yield and temperature.
3、除草剪刀专门用于修剪缝隙角落里的青草。
Grass shears are specially made to trim grass growing in awkward places.
4、我吃了些脆玉米片，呼吸着充满青草气息的新鲜空气，这让我一天都充满活力。
I have my cornflakes and smell the fresh air and the grass and it sets me up for the day.
5、风吹来了青草和野花的清香。
The winds came down with the scents of the grass and wild flowers.