Efficaciousness
n. 有效;灵验
🗣️ 情景例句
You should consider his proposal.
你该仔细考虑他的建议。
All is not gain that is put in the purse.
放入钱包的钱财，并非都是应得的。
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。