ululation
1. Soon, mom hears the child cry ululation.
不久之后,妈妈听到孩子的哭啼声。
2. The desperate ululation advanced like a jagged fringe of menace and was almost overhead
令人绝望的呜呜叫声就像充满威胁的一排排锯齿朝前推进,几乎就要落到头顶上。
3. The sound of ululation could be heard from sea to shining sea.
啜泣声从西海岸传到了东海岸。
4. ululation of apes
猿声