Once this happens, it's hard to get your hearing back.

一旦发生这种情况，你就很难恢复听力。

youdao

Once this happens, blood appears in the vomit and faeces.

一旦出现此种症状，呕吐物和粪便中就会带血。

youdao

Once this happens the coral is deprived of energy and dies.

这种情况一旦发生，珊瑚就会失去能量，进而死亡。

youdao

Once this happens, no amount of washing of sanitizing post-lay will rid the egg rid of contamination.

FORBES: To Fridge of Not to Fridge?

Once this happens, global trade would be hit and everyone would lose.

FORBES: Why Japan Is Bad For The World

Once this happens, outsourcing is no longer a source of competitive advantage.

FORBES: How Hewlett-Packard And Dell Destroyed Their PC Advantage ... Piece-By-Piece