Steppingstone
n. 踏脚石，达到目的的手段
🗣️ 情景例句
because she's had to go to Chicago on a business trip and can't leave till tonight.
因为她得到芝加哥出差，而且要到今晚才能脱身。
What for?
何必呢？
Everyone went to the funeral, for the 'ghost' was none other than Eric Cox, a third brother who was supposed to have died as a young man.
大家都去参加了葬礼，因为那“鬼”不是别人，正是农场主的兄弟埃里克。考科斯。人们以为埃里克年轻时就死了。