5 billion是什么意思
“seven billion billion billion”是什么意思?
Billion是什么意思?
billion是什么意思
Billion到底是什么意思?
one and a third billion是什么意思?
5 billion是多少?怎么读?
翻译Facebook Files for $5 Billion Initial Public Offering
only $5 billion short of the record bill in 2008.
million billion
China\'s 1.3 billion people,I love you one翻译中文是什么意思?
billion 与 billion of的区别