Ectohumus
[地质]外腐殖质
🗣️ 情景例句
Don't worry, everything will work out in the end.
别担心，到最后一切都会顺利成功的。
He is surprised.
他大为惊讶。
The conference was very well organized. Everything began and finished on time.
会议安排的很好。开始和结束都准时。