- 重点词汇
- 扳手
spanner; wrench; key
- 对应
correspond; match; equate; be equivalent to; be parallel to; be in correspondence with; answer; correspondence; counterpart; equivalent; homologous; corresponding; matching; parallel; one-to-one; counter-
- 多大
how old
- 螺母
nut; screw nut; lug nut; cap nut; cover nut; blind nut