“四十亿”例句

单词 四十亿 例句 DEFINITIVE EXAMPLES 权威例句〔contribute〕The US is contributing $4 billion in loans, credits, and grants.美国政府将投入四十亿美元用于贷款、信贷和拨款。外研社新世纪In the four-billion-year history of life, 100,000 years is a twinkling.在...