Kerogen
n. 油母岩\\n[化] 油母质
🗣️ 情景例句
555-9470…and it's busy….
555-9470……还是忙音 ……
Where can I make a reservation?
我到哪里可以预订？
Because I've just retired.I want to buy a small house in the country.
因为我刚退休。我想在乡下买幢小房子。