He went on talking as though nothing had happened.
- Il continua de parler comme si de rien n'était.
In order to achieve great things, we must live as though we are never going to die.
- Pour exécuter de grandes choses, il faut vivre comme si on ne devait jamais mourir.
He looked as if nothing had happened.
- Il semblait comme si rien n'était arrivé.
Brent is an American, but he speaks Japanese as if it were his mother tongue.
- Brent est Américain, mais il parle japonais comme si c'était sa langue maternelle.