Underutilized
a. 未充分利用的
🗣️ 情景例句
Hi. What can I do for you?
嗨 。我能帮你吗？
You're the boss.
听你的。
But it is also used very widely as a foreign language in many other countries in the world.
然而在世界上其他许多的国家英语也被当作一门外语广泛地使用。