The detective found a clue in the old book.
侦探在旧书中发现了一个线索。
She followed the clue to the hidden treasure.
她顺着线索找到了隐藏的宝藏。
There might be a clue in this letter.
这封信里可能有一个线索。
He searched everywhere for a clue.
他到处寻找线索。
The clue led them to the abandoned house.
这个线索把他们引向了废弃的房子。
They hoped to find a clue in the photo.
他们希望在照片中找到一个线索。
A clue was finally discovered in the basement.
终于在地下室发现了一个线索。
Looking for a clue, she examined the room carefully.
为了寻找线索，她仔细检查了房间。
The clue to solving the mystery is in the diary.
解开这个谜团的线索在日记里。
He found a clue that might break the case.
他找到了一个可能会破获这个案子的线索。
not have a clue
一无所知, 不知怎么做
important clue
重要线索
without a clue
无头绪；毫无头绪；漫无头绪
provide clue
提供线索
find clue
找到线索
复数: clues;
