Age
no spring chicken
no longer young
After climbimg the hill, I realized I'm no spring chicken!
wet behind the ears
young and inexperienced 缺乏经验的；乳臭未干的
My assistant is a bit wet behind the ears. He still has a lot to learn. 我的助手还略显稚嫩，尚有很多东西需要学习。
She just graduated, so she's still wet behind the ears in this industry. 她刚毕业，所以在这个行业里仍缺乏经验。
- 近义表达：green（生涩的）；inexperienced（无经验的）
- 反义表达：seasoned（经验丰富的）；veteran（老练的）
in the prime of my life
at my best; healthy and successful 风华正茂； 正值壮年；人生的黄金时期
I've just turned 40, and I'm in the prime of my life. I always go to the gym after work.
knee-high to a grasshopper
very young 小不点儿 /ˈɡræsˌhɑpɚ/
Katie started learning piano when she was knee-high to a grasshopper.
get on in years
getting old 上年纪了；年纪渐长了
Becky's worried she's getting on in years after spotting more gray hairs.
as old as the hills
extremely old 非常古老；由来已久
Sanjay feels as old as the hills when his kids talk about technology.
long in the tooth
old 一把年纪了；年纪大了
I'm too long in the tooth to try out skydiving.
twilight years
the last years of someone's life
Derek and Joan spent their twilight years traveling the world.
bright young things
young, enthusiastic, fashionable, or ambitious people 风华正茂的年轻人；充满活力的年轻人；时尚的年轻人；有抱负的年轻人；朝气蓬勃的小年轻们
These bright young things have just started college.
bridge the generation gap
appeals to people of all ages
This TV show bridges the generation gap. The whole family loves it.
over the hill
old, past my best years 过了巅峰期；走下坡路了
I can't come to that nightclub with you! I'm over the hill.
young at heart
youthful, despite being old
Angela might be 84, but she is still young at heart.
ripe old age
very old age 高龄；高寿。
My grandpa got married again at the ripe old age of 92.
act one's age
behaving in a way appropriate to his age 表现得成熟点；举止得体；表现得符合年龄
Brendan's teacher told him to start acting his age.
that awkward age
the period of adolescence when people feel very self-conscious 尴尬的年龄；青春期
Damien's at that awkward age and finds it hard to talk to people.
come of age
reach maturity, or have the same legal right as adults 成年；达到法定年龄；成熟
In many countries, there is a big celebration when young people come of age.
tender age
very young age 年纪小；幼年
Sally first sang on stage at the tender age of 7.
feel one's age
am conscious of being older 感觉老了；感觉自己年纪大了
I feel my age when I go shopping with my children.
improve with age
get better as they get older 越老越有价值；越老越好
Many singers' voices improve with age.
great age
very old age 高龄；高寿。
Stephen has reached the great age of 100.