Ectohumus
[地质]外腐殖质
🗣️ 情景例句
Yes, but you did, and we've got our lunch.
没错， 但你念了， 使我们钓到了午餐。
Mr. Smith is a politician.He's running for election as governor.
史密斯先生是竞选州长的一名政治家。
Yes, there are.
是的，有。