Unserviceability
[化] 使用不可靠性
✅ 同义词
🗣️ 情景例句
that I wasn't sure.
我说我不能确定。
I'm afraid you will fail.
我怕你会失败。
'I've been coming up here night after night for weeks now.
“好几个星期了，我天天夜里到钟楼上来。