Definition: not known or fixed, or not completely certain Level: B2
新来者面临一个不确定的未来。
New arrivals face an ___uncertain future.
政治前景仍然不确定。
The political outlook is still ___uncertain.
我们不确定的邮政服务可能导致信件丢失。
Our ___uncertain Post Service might cause letters to get lost.
