Overflying
v. 飛躍( overfly的現在分詞 )
??? 情景例句
I'm not quite familiar with the claim and arbitration in international trade.
我對國際貿易的索賠與仲裁不夠熟悉。
When is the ship supposed to leave?
船應該在什么時候開？
and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
測出回聲間隔的時間，便可算出該處海洋的深度。