“使密布”常见的英文表达可以是 “make ... dense/thickly distributed” 或者根据具体语境用 “cause ... to be densely covered/spread” 等。以下是一些例句来帮助理解：
* 使树叶密布枝头：Make the leaves densely cover the branches （或 Cause the leaves to be densely spread over the branches） 。
* 使乌云密布天空：Make the dark clouds thickly distributed in the sky （或 Cause the sky to be densely covered with dark clouds） 。