象其它许多城市一样，费城尝试过很多设备让车手减速，用过真正的减速带，交通圈，控制带，橡胶条，略微提升的行人过道。
Like many other municipalities, Philadelphia has tried a variety of devices to slow drivers: real speed humps, traffic circles, curb extensions, rumble strips, slightly raised crosswalks.
象其它许多城市一样，费城尝试过很多设备让车手减速，用过真正的减速带，交通圈，控制带，橡胶条，略微提升的行人过道。
Like many other municipalities, Philadelphia has tried a variety of devices to slow drivers: real speed humps, traffic circles, curb extensions, rumble strips, slightly raised crosswalks.
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