“日界线”怎么读

“日界线”的英语可以翻译为：[天] date line，dateline，international date line ...

我们正越过国际日界线.We are crossing the international date line.当他越过日界线时,要从他的日历上减去一天,才能得到补偿.When he crosses the line he subtract a day from his calendar in order to compensate....