We talked about how we spent Children's day last Monday and the big thunderstorm on Friday. We learned about hail.

我们讨论了如何度过周一的儿童节，周五的大暴雨。我们学会了冰雹这个词。

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But it's also the weakest section because it's often destructed by thunderstorm and brings a big menace to the operating and repairing of the system.

由于这类系统中的中继站常处于山区，故常常遭到雷击的破坏，给系统的运行和维护带来威胁。

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But it's also the weakest section because it's often destructed by thunderstorm and brings a big menace to the operating and repairing of the system.

由于这类系统中的中继站常处于山区，故常常遭到雷击的破坏，给系统的运行和维护带来威胁。

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