失当

例句：

1. 1. He made a mistake in his report, which caused the meeting to be delayed.
   他在报告中犯了一个错误，导致会议被推迟。
2. 2. The dress she wore was not quite suitable for the occasion.
   她穿的衣服不太适合场合。
3. 3. It's important to choose words carefully when writing to avoid misunderstandings.
   在写作时选择词语要谨慎，以免造成误解。