科学家研究了声音在不同介质中的传播速度。

Scientists studied the ___sonic speed of sound in different mediums.

这款耳机能提供出色的音质体验。

These headphones deliver an excellent ___sonic experience.

我最喜欢的角色是刺猬索尼克。

My favorite character is ___Sonic the Hedgehog.