Tcvs
abbr. Thrust Chamber Valve Switch （火箭發動機）推力室閥門開關
??? 情景例句
So does the sound.
這些聲音也是。
His classical music is so quiet. I can't even hear it!
他的古典音樂幽靜得聽不見。
If parents were prepared for this adolescent reaction,
如果家長對青少年的這種反應有思想準備，