Optionality
n. 期权性风险
🗣️ 情景例句
I know it.
我知道。
We made New York after dark.
我们在天黑后到达纽约。
There is a zoo, an art museum, a boating lake, a smaller lake for model boats and, in winter, an ice-skating area.
还有一个动物园、一座艺术博物馆，一个供人划船用的湖。另有一个比较小的湖，供人们玩模型船艇，冬天就成为滑冰场。