单词：impediments
音标：[ɪm'pedɪmənts] ；
n. 妨碍、阻碍某事物进展或活动的人或物( impediment的复数形式 ); 身体上的某类残疾, 缺陷
n. something immaterial that interferes with or delays action or progress
n. any structure that makes progress difficult
n. any structure that makes progress difficult