Billions of dollars和Billion dollar各是什么意思

hundreds of billions of dollars是什么意思? billions of dollars 什么意思 billions of 是什么意思? 为什么 —----------?—Should we spend billions of dollars dollars dollar和dollars的区别? Floods cause billions of dollars worth of property damage __ billions of dollars翻成英语准确的是什么? ,we could see billions of dollars in revenue. dollar和dollars有什么区别 billions of? 英语翻译Millions,if not billions of dollars have been paid in la 英语翻译The Big Bull Market was dead.Billions of dollars' worth