It says, for example, next to each letter grade what it means.

比方说，每个字母表旁边都注明了含义。

耶鲁公开课 - 死亡课程节选

We should call it E-flat and put it up on the E line because there's kind of rule here that you have to use up each letter name in turn, each letter name in turn.

我们应该称之为降E,把它放在E的谱线上,因为这算是一个规则,要依次使用每个字母,依次用每个字母

耶鲁公开课 - 聆听音乐课程节选

The curriculum outline activities that address learning skills in each learning grade level, including letter writing, data collection, reading, research skills and presentation skills, critical thinking and collaborative working in small groups.

教程总体活动注重,培养学生在每个年级水平的,学习技巧，包括书信写作，数据搜集，阅读，研究技巧，展示技巧，批判性思维,还有小组的团队协作能力。

麻省理工公开课 - 媒体、教育、市场课程节选