This block of code defines a GEvent.addListener which listens for any map movement (drag, drop, zoom, pan, map type change) and defines the appropriate action to take should it occur.

这段代码定义一个 GEvent.addListener ，它监听所有地图运动（拖、放、缩放、摇移、地图类型切换）并定义相应的操作。

youdao

Conclusion: Reversible oviduct block contraception is a new method, its blocks being unlikely to drop out; safe and reliable, with good reversibility and high renewal rate of pregnancy.

结论：输卵管置管可复性节育术方法新颖，不易脱落，安全可靠，可复性好，复孕率高。

youdao

This is humiliating. Couldn't you drop me a block from school?

这真是丢人，你能不能把我放到离学校一站远的地方？

youdao

Formed seemingly from a single block of Lucite, the new mouse looks more like a drop of mercury than an input device.

CNN: Review: Apple Pro Mouse

"I took my chopsticks and picked up a scorpion, praying I wouldn't drop it, " Block recalls.

FORBES: My Beijing