Elucubration
刻苦钻研, 苦思冥想
🗣️ 情景例句
I see him on the train every day but we are not on speaking terms.
我每天都在火车上见到他，但彼此没有说过话。
Photography is an expensive hobby.
摄影是门花费很多的爱好。
I'm afraid it's the cheapest one we've got.
恐怕这一套算是我们这里最便宜的了。