英语语法分析

He liked to use the glissando as his hallmark, which he probably got from listening to Croatian folk music.

他喜欢用滑奏作为他的标志，这可能是他听克罗地亚民间音乐时了解到的。

This should be played glissando, please.

这一段请以滑奏法来演奏。

Then, is how to do a proper glissando, do I need to move my jaw inward/outward to do a glissando?

然后就是怎样正确的演奏滑音，我需要将嘴唇内外移动来制造这个效果吗？