Correct

金刚钻

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Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/金刚钻-Chinese-idioms-Cchatty-c2e789c7-c5b4-43a5-bad8-203b4d565351-1612778327.jpg

Collocation

1
成为金刚钻
2
没有金刚钻,就别揽瓷器活
3
个个都是金刚钻

Definition

金刚钻

Literally means:

diamond drill

Actually means:

superb skill

This phrase, also called 金刚石, is the hardest natural material known to human. It figuratively refers to an expert or a competent person or superb skill. Commendatory.

也叫金刚石,天然矿物,也是自然界已知的最硬的物质。比喻有知识有才能的人,或高超的技艺。具有褒义色彩。

Example

Often used as object or attributive. (作宾语、定语)
1
Tā
他
zhāoshōu
招收
de
的
yánjiūshēng
研究生
bù
不
duō
多
  
,
dàn
但
zài
在
tā
他
de
的
jīngxīn
精心
péiyǎng
培养
xià
下
  
,
gègè
个个
dōu
都
shì
是
cái
才
néng
能
chūzhòng
出众
de
的
jīngāngzuān
金刚钻
  
。

He enrolled not many graduate students, but under his careful training, they are all outstanding diamonds.

2
Tā
他
shǒuzhōng
手中
wòyǒu
握有
jīngāngzuān
金刚钻
  
,
shì
是
xiūlǐ
修理
jìnkǒu
进口
gāodàng
高档
qìchē
汽车
de
的
néngshǒu
能手
  
。

He has a diamond in his hand and is a good repairman for imported high-end cars.

3
Nǐ
你
xiǎng
想
chéngwéi
成为
rénrén
人人
xiànmù
羡慕
de
的
jīngāngzuān
金刚钻
  
,
nǐ
你
jiù
就
bìxū
必须
xiàkǔgōng
下苦功
xuéxí
学习
  
,
huā
花
dà
大
lìqì
力气
  
。

If you want to be the diamond that everyone admires, you must study hard and spend a lot of effort.