green energy
collocation绿色能源
Many countries are investing in green energy.
许多国家正在投资绿色能源。
绿色的；青的
greener — comparative of green
先理解核心含义，再看它在真实句子里的用法。
绿色的；青的
Having the color of grass, leaves, or emeralds.
The new intern is so green that he believed the prank about the office dress code.
那个新实习生太天真了，居然相信了关于办公室着装规定的恶作剧。
绿色的。
Of a green hue.
与绿党或绿色党有关的。
Of, or pertaining, to a Green Party or green party.
病态的,不舒服的。
Sickly, unwell.
未成熟的,指某些成熟时变色的水果。
Unripe, said of certain fruits that change color when they ripen.
Don't be so green; you shouldn't trust strangers offering easy money.
别这么天真，你不该相信陌生人提供的好赚钱机会。
After being cheated once, he became less green and more cautious.
被骗过一次后，他不再那么天真，变得谨慎多了。
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绿色能源
Many countries are investing in green energy.
许多国家正在投资绿色能源。
非常嫉妒；眼红
She was green with envy when she saw his new car.
看到他的新车时，她嫉妒得不得了。
天真幼稚；毫无经验
He is green as grass and trusts everyone.
他天真极了，谁的话都信。
脸色苍白；看起来不舒服
After the roller-coaster ride, he looked a little green around the gills.
坐完过山车后，他看起来有点不舒服。
绿灯
Wait for the green light before crossing the road.
过马路前请等绿灯。
绿党
She has voted for the Green Party for years.
她多年来一直投票支持绿党。
非常嫉妒；眼红
She was green with envy when she saw her friend's new car.
看到朋友的新车时，她非常嫉妒。
给某人开绿灯；准许，批准
The board gave the green light to the new proposal.
董事会为新提案开了绿灯。
园艺才能；种植技能
My grandmother has a green thumb; her garden is always beautiful.
我祖母很有园艺才能，她的花园总是很漂亮。
这山望着那山高。
He's always complaining about his own life, but the grass is always greener on the other side.
他总是抱怨自己的生活，但总觉得别人的比自己好。
做只绿青蛙不容易。
The little green frog felt different from his friends, but he learned that being green is something to be proud of.
那只绿色的小青蛙觉得自己和朋友不一样，但后来他明白了，身为绿色是值得骄傲的。
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记green：绿色草地；未熟的青果、没经验的新手、嫉妒得脸色发青，都叫green。
语域：neutral 常见场景：日常对话、书面描写、交通信号灯 表示“绿色的”时属于中性表达，日常口语和书面语中都很常见；在描述自然景物、物品颜色或交通信号时无需特意选择正式或非正式说法。
比较级greener，最高级greenest
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.