tickler
n
(dated infml 旧, 口 esp Brit) puzzle; problem 难题; 问题
an awkward little tickler to solve 需要解决的小难题.
🗣️ 情景例句
You haven't changed a bit.
你们一点都没有变。
The teacher was not at all happy with his students.
那位老师对他的学生毫不满意。
As no pumas had been reported missing from any zoo in the country, this one must have been in the possession of a private collector and somehow managed to escape.