n.障碍；阻碍；口吃
No impediment could shake my determination. 任何障碍都不能动摇我的决心。
War is one of the greatest impediments to human progress. 战争是人类进步的最大阻碍之一。
By much pains, the orator overcame a natural impediment in his speech. 这位演说家用苦练的方法克服了天生的口吃毛病。
It's difficult to understand him because he has a speech impediment. 他的话很难听懂,因为他讲话口吃。
开发障碍
n.妨碍行进的重负；累赘
