normal echo
英
美
正常回声(超)
normal echo的用法和样例:
例句
The return of the echo will elapse longer time.
回声返回所耗的时间越长了。
Dolpins also navigates by some kind of echo system.
原来海豚也是借助某种回声系统寻向的。
normal echo的相关资料:
临近单词
normalism
normal
Normal presence
normal activity
normal geodesic
normal solution
normal relation
normal headache
normal backlash
normal formulas
normal response
normal products
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