Invar
n. 不变钢\\n[化] 殷钢; 不胀钢; 因瓦合金
🗣️ 情景例句
It's completely beyond my grasp.
我完全摸不着头脑。
The child is father of the man.
三岁定到老。
It's nearly ready.We can have dinner at seven o'clock.
马上就好。7点钟我们可以吃饭。