回帖：我暗示说虚弱的圣徒用了一品脱油漆涂印刷机.
17. At any rate, the separation ratio is accurate.
无论如何,这个分离比是精确的.
18. The boundary around the round ground separates us from the surroundings.
围绕着圆形场地的边界将我们同四周隔开.
19. The blunder made the underground instrument