Expertism
n. 专长, 专门技能(或知识等)
✅ 同义词
🗣️ 情景例句
Does this store sell bubble bath?
这家店里卖泡沫浴液吗？
An occasion lost cannot be redeemed.
时机失了无法挽回。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.
某些大公司进行的研究属于一般和基础性的研究。因此不保密对他们才有利。