strong-arm

grammar · medium

易错句子The company used strong arm tactics to silence the workers.

正确表达The company used strong-arm tactics to silence the workers.

strong-arm 是复合形容词，作定语修饰名词时必须用连字符连写；分开写成 strong arm 会被理解为“强壮的手臂”这一名词短语，失去“强制的、胁迫的”含义。

grammar · medium

易错句子They used strong-arm to get him to sign the contract.

正确表达They used strong-arm tactics to get him to sign the contract.

strong-arm 只作形容词，不能单独充当名词或宾语；它必须修饰一个名词（如 tactics、methods），句子才完整成立。

grammar · medium

易错句子My brother is very strong-arm; he can carry two suitcases at once.

正确表达My brother is very strong; he can carry two suitcases at once.

strong-arm 指“使用武力胁迫的”，与体力无关；表示“力气大”应用形容词 strong，这里属于词义混淆。