echo
Definition
A sound that is reflected back to its source, often heard in mountains or large rooms.
中文 从其源头反射回来的声音，通常在山脉或大房间里听到。
Example
"His shout across the valley returned as a faint echo a few seconds later."
A sound that is reflected back to its source, often heard in mountains or large rooms.
中文 从其源头反射回来的声音，通常在山脉或大房间里听到。
"His shout across the valley returned as a faint echo a few seconds later."