4123400翻译成英语

4,123,400
four million one hundred twenty three thousand and four hundred

Four million and one hundred twenty-three thousand and four hundred

他们都不对，听我的~

four million one hundred and twenty-three thousand and four hundred.

必须有那个“and"的

katz_chipp3 you are right!

应该是这样：
4,123,400

four million one hundred and twenty-three thousand four hundred

如果是写下来的，就写上面数字格式的，写上“，”比较好。
如果是口语，就按下面那长句子说，在million 和 thousand 后面有停顿，有没有“，”也就无所谓了。

楼上的没错