按了几个键后，丽贝卡连接上了她在自由航空公司的电脑。
With a few keystrokes, Rebecca was connected to her computer at Liberty Air Service.
这样的话，我认为存储过程，触发器，外键是可选的，而不是强迫的，因此我可以自由的选择不去用它们。
As far as I am concerned the use of stored procedures, database triggers and foreign key restraints is OPTIONAL, not MANDATORY, therefore I am free to exercise my option not to use them.
这种沃洛电视触摸屏可以让你自由选择和控制自己想看的电视节目，所以如果你突然想去洗手间，你可以按暂停键让节目暂时中止。
The Volo TV touchscreen allows you to choose and control what you watch, so you can pause the action if you need to pop to the toilet.
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