Moreover, they will also be keeping a close eye on the sites' surface and atmospheric characteristics in order to gauge their safety for the landing system and rover.
此外，他们还要密切留意这几个地点的地表和大气特征，以确保着陆系统和探测器的安全。
2
Oil traders will also keep an eye out for monthly reports from the Organization of Petroleum Exporting Counties and the International Energy Agency to gauge global supply and demand levels.
原油交易商也将关注欧佩克和国际能源机构月报以衡量全球供需水平。
3
I could say it was Amber's fault but I was driving, so I guess I should have kept a closer eye on the gauge.