1、monitor
监控;监视;监督
Officials had not been allowed to monitor the voting.
以前不允许官员监督投票
。You need feedback to monitor progress.
你需要利用反馈信息来监控进展
。监督员;监控人;核查员
Government monitors will continue to accompany reporters.
政府监督员将继续陪同记者
。UN monitors overseeing Namibian independence.
监督纳米比亚独立情况的联合国核查员
2、discover
发现(以前不知道的事实)
She discovered that they'd escaped.
她发现他们已经逃跑了
。I discovered I was pregnant.
我发现自己怀孕了
。(第一个)发现
the first European to discover America.
第一个发现美洲大陆的欧洲人
In the 19th century, gold was discovered in California.
19 世纪时,在加利福尼亚发现了金子
。