Esco
abbr. 节能服务公司（Energy Service Company）；联合国教科文组织（Educational, Scientific and Cultural Organization）
🗣️ 情景例句
I can hardly keep my eyes open.
我简直睁不开眼睛了。
Nothing for nothing.
不费力气，一无所得。
Recent developments in astronomy have made it possible to detect planets in our won Milky Way and in other galaxies.
天文学方面最新发展使得我们能够在银河系和其他星系发现行星。