Kerogen
n. 油母岩\\n[化] 油母质
🗣️ 情景例句
We formed a very favorable impression of her.
我们对她的印象极好。
I often comb my hair in the morning.
我常常在早上梳头。
The whole village has been working day and night gathering and threshing this year's crop before the September rains.
全村的人都日夜奋战，要赶在9月的雨季之前把今年的庄稼收获上来，打完场。