However, the mucous membrane may not fully recover from a viral infection or head cold for several weeks after initial symptoms begin - this is why DAN advises divers not to dive with any symptoms of a cold.
However, the mucous membrane may not fully recover from a viral infection or head cold for several weeks after initial symptoms begin - this is why DAN advises divers not to dive with any symptoms of a cold.
然而粘膜在病毒感染或者几个星期的头伤风后可能没有完全恢复―――这就是为什么DAN建议潜水者在有任何感冒症状的时候都不要潜水的原因。