spanner
(Brit) (US wrench) n
1 tool for gripping and turning nuts on screws, bolts, etc 扳子; 扳手
I'll need a spanner to change the back wheel. 我需要一把扳手來換後輪.
2 (idm 習語) (throw) a `spanner in the works (Brit infml 口) (cause the) ruin or sabotage of a plan, scheme, etc 破壞一計畫、 方案等.