If gum disease progresses, however, the gums may begin to separate from the teeth, forming pockets that can trap bacteria and boost the risk of infections.是什么意思_If gum disease progresses, however, the gums may begin to separate from the teeth, forming pockets that can trap bacteria and boost the risk of infections.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句