Ppv
abbr. 按次收费电视服务（Pay Per View）；聚对苯撑乙炔（Poly-Phenylene Vinylene）；猪细小病毒
🗣️ 情景例句
I give thanks for being here with my family and for being well,
我感谢能在这里和家人在一起而且很健康，
Choice of the end covers choice of the means.
选择目的包含著选择手段。
The question was, which one?
问题是，哪一种气体导致火灾呢？