pedal n. 踏板 v. 踩……的踏板
例句：He pushed hard on the brake pedal to avoid a collision.
他使劲踩下煞车踏板以避免撞车。
expedite v. 加快，派出 adj. 畅通的，迅速的
例句：The builders promised to expedite the repairs to the roof after they got a premium.
建筑工人拿到额外费用后，答应加快屋顶的修缮。
expedition n. 远征，探险队，迅速，派遣
例句：The expedition suffered all the rigors of a Canadian winter.
这支探险队饱受了加拿大严冬的折磨。
pedestrian n. 步行者 adj. 徒步的，呆板的，通俗的
例句：You can go in the period of time during which motor vehicular and pedestrian traffic is light．
你可以在车辆和行人都较少的时间段去。
impede v. 阻止，妨碍
例句：The development of the project was seriously impeded by a reduction in funds.
由于基金削减，工程进度严重受阻。
