retention

The company is struggling with employee retention because of the low salaries and lack of benefits.

(Chinese) 由于薪水低且缺乏福利，该公司正面临员工流失（保留率低）的问题。

Visual aids like charts and diagrams can significantly improve students' retention of new information.

(Chinese) 图表和简图等视觉辅助工具可以显著提高学生对新信息的记忆效果。