He threw his shoulders back and stuck out his chest.他端正肩膀,挺了挺胸。Inhale, drop your shoulders and raise your chest.吸气,肩膀放松,挺胸。The troops squared their shoulders and stood at attention while the general reviewed them.在接受将军检阅时,部队全体挺胸肃立。He squared his shoulders dramatically.他演戏般地挺了挺胸。