abbr. 海拔高度（Above Sea Level）；大气科学实验室（Atmospheric Sciences Laboratory）；美国手势语言（American sign language） 精选例句 高考 1、 Clara had been studying ASL for the past year to help blind and deaf people and she knew she'd be able to finger spell into the man's palm. 克拉拉在过去的一年里一直在学习美国手语，以帮助盲人和聋人，她知道她可以在这个人的手掌上拼写。 来源: 2、 The following term, I decided to be a member of an ASL class. 接下来的学期，我决定成为美国手语班的一员。 来源: