As soon as she saw something which she thought might make a tasty snack, she would lock onto it, wait until it came close enough, and then suddenly pounce.
一旦发现她认为会是美味的点心的东西，她就会锁定它，等待它足够接近，然后突然之间猛扑过去。
These molecules can act as "receptors" for influenza viruses, permitting them to lock onto a cell's surface and thus infect it.
这些分子可以充当流感病毒的“受体”，让这些病毒锁定细胞表面，进而感染它。
What you generally see is that people lock onto a version of this application, and then just refuse to upgrade when it starts getting out of control.
你通常看到的一个现象就是：人们固定地使用软件的某一个版本，然后当该软件失去控制时他们却拒绝将其更新。
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