Optionality
n. 期权性风险
🗣️ 情景例句
The musicians. The dancers--in the parks and on the streets.
音乐家啦 ，在公园或街头跳舞的人啦。
How did you do it?
你是怎样达成它的？
We could visit the town of Aswan.
我们可以游览阿斯旺城。