The traffic signals along Factoria Boulevard in Bellevue, Washington, generally don't flash the same length of green twice in a row, especially at rush hour.

华盛顿贝尔维尤的法克托利亚大道上的交通信号通常不会连续两次闪烁相同时长的绿灯，尤其是在交通高峰期。

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But the traffic jams are still a problem, especially at rush hour.

但是交通堵塞仍是个棘手问题，尤其是上下班高峰期。

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(Fig. B): The more particles we squeeze into the container, the testier they will become, especially if the container happens to be a rush-hour downtown local at 86th and Lex.

（图B）：如果我们把更多的粒子挤入容器中，它们将变得易爆。假如这个容器正好是高峰期在86街和莱克星顿大道路口开往下城的地铁慢车车厢，情况就更是如此。

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