Airline passenger volume has dropped by 20 percent.
航空客运量已经下降了20%。
The passenger volume this May was not as big last May.
今天五月的客流量没有去年的大。
Passenger: Excuse me. Can you please lower the volume of the radio?
乘客：不好意思，可以麻烦你把收音机关小声一点吗？
Passenger: Excuse me. Can you please lower the volume of the radio?
乘客：不好意思，可以麻烦你把收音机关小声一点吗？
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