这些航空公司常常共用销售处和乘客休息室等设施以节省成本，还可以调整飞行时刻表，优化航运网络。
They often trim their costs by sharing facilities such as sales offices and passenger lounges. They can also coordinate their flight schedules, optimizing their networks.
周末，我有时利用网络获取我的课程资料，给我的朋友发邮件，查询火车时刻表。但是，我从不在电脑上玩游戏。
At the weekends I sometimes use the Internet to get information for my lessons, send emails to my friends and check the train timetables, but I never play games on it.
简单的说，网络浏览器就是一款软件，能带我们去想去的网站，无论是去买条裤子还是查询公交时刻表。
To put it in a simple way, net browser is a software which can bring us to any website we'd like to go, whether to buy a pair of trousers or check the schedule of a bus.
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