“必要时”造句

必要时可以把它当作武器.
At a pinch it can be used as a weapon.

必要时, 他们愿为国捐躯.
They were ready to die , if necessary, for their country.

他们不怕应对这些问题，也不怕必要时来一番激烈的争论。
They are not afraid to tackle the issues or let the sparks fly when necessary.