??? 情景例句
Affectionately, Uncle John.
愛(ài)你的，約翰叔叔。
Therefore,we always put quality as the first consideration.
因而，我們總是把質(zhì)量放在第一位來(lái)考慮。
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(cè)出回聲間隔的時(shí)間，便可算出該處海洋的深度。