市议会收窄了主干道，为新的自行车道腾出空间。

The city council ___narrowed the main road to create space for a new cycle lane.

当他审视那陌生的笔迹时，怀疑地眯起了眼睛。

His eyes ___narrowed suspiciously as he examined the unfamiliar handwriting.

为了降低车速，规划者已经收窄了该区域的几条住宅区街道。

To reduce traffic speed, planners have ___narrowed several residential streets in the area.