In many cases, of course, there is no single recommended approach.
当然，在很多情况下建议的方法并不止一个。
Without connection pooling, that is of course expensive and not recommended.
如果没有连接池，代价当然会很高，也不会建议那样做。
The recommended medicine; the suggested course of study.
推荐药品；推荐课程。
The required reference for the course is (c). The recommended texts are (e) and (h).
本课程的课本是(C)，建议课本是(e)和(H)。
It is recommended to attend Astrology course.
它被推荐参加占星课程。
It is recommended to attend Astrology course.
它被推荐参加占星课程。
应用推荐