The closeness this system cultivates is reinforced by the institution of "advisory" classes Teachers meet with students in groups of 25, five mornings a week, for open-ended discussions of everything from homework problems to bad Saturday-night dates.
出自-2012年6月阅读原文
柯林斯高阶英汉双解学习词典释义
VERB
耕;耕作；种植
If you cultivate land or crops, you prepare land and grow crops on it.