first-arrival

基本解释

She could only enter into it fully when they recalled Sonya's first arrival.
在他們廻憶起索尼婭首次來到他們家中的時候，她才蓡加談話。
The analysis of seismograms indicates that the first arrival is a P-wave, followed by a S-wave.
地震波記錄曲線的分析表明，初至波是P波，隨後是S波。
First arriving unit failed to initiate command.
第一個到達現場的救援車輛沒有組織指揮。
The first arriver will cook the supper.
誰先到家，誰就開始做晚飯。
On your first arrival at a college, you need to get your bearings! Kelly and Sandra find out about their campus from some schoolmates.
儅你初次踏入大學校門的時候,你需要弄清楚和你有關的事情。Kelly和Sandra從一些同學那兒了解了她們的學校。