spanner
/ˈspænə(r); `spænɚ/ (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. 我需要一把扳手来换後轮.
2 (idm 习语) (throw) a `spanner in the works (Brit infml 口) (cause the) ruin or sabotage of a plan, scheme, etc 破坏一计画、 方案等.