单词 这便是明证 例句 DEFINITIVE EXAMPLES 权威例句〔witness〕Americans are a generous people: witness the increase in charitable giving, even during the recession.美国人是个慷慨的民族:即使是在经济萧条时期慈善捐赠也在增加, 这便是明证。外研社新世纪〔witnes...