Unreliability
n. 不可靠, 不可信赖；不安全
✅ 同义词
🔴 反义词
🗣️ 情景例句
We're in the phone book.
我们家的电话号码 可以在电话簿上查到。
I asked him to do it for me, but he wouldn't.
我请他帮我做，但是他不肯。
It has been found that certain bats emit squeaks and by receiving the echoes,
人们发现，某些蝙蝠能发出尖叫声，