您要查找的是不是：
- 挡obstruct
- 挡圈thackeray washer
- 挡块limit stop (ls)
- 自动挡automatic catch
- 按模n计数count modulo n
- 挡片separation blade
- s-o-n-g拼成"song"一字。s-o-n-g spells "song".
- 按模数N校验modulo n check
- 挡水water holding
- n. 克g.
- 挡水板breakwater
- n. 页p./pp.
- 挡道in the way
- n. 段par.
- n. 码yds.
- 挂挡put into gear
- p-n 结p-n junction
- 挡雨keep off the rain; shelter one from the rain
- n. 进口Imp.
- 他仍和汤姆搭挡。He still partners with Tom.
