Index fossil
标准化石
🧩 词语组成解析
index
['ɪndɛks]
n. 索引;<数>指数;指示;标志;
vt. 给…编索引;把…编入索引;[经济学]按生活指数调整（工资、价格等）;
vi. [机械学]转位;
in(in)+dex(proclaim)→指针；索引；指数；食指；指标
🗣️ 情景例句
Sure. I will. You can count on that.
我一定会。
I wish you would give me a more detailed description of your trip.
我希望你将给我更详细地描述你的旅行。
Oh, we must find them. What are they wearing?
哦，我们必须找到她们。她们穿什么衣服？