医生向她推荐了避孕膜作为避孕措施。

The doctor recommended ___diaphragms as a contraceptive method to her.

当打嗝时，膈肌会不自主地收缩。

When you hiccup, your ___diaphragm contracts involuntarily.

扬声器的振动膜需要定期清洁以保持音质清晰。

The speaker's ___diaphragm needs regular cleaning to maintain clear sound quality.