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 necess...
You must abide by the results of your mistakes.你必须承担你的错误所造成的后果.If you join the club, you have to abide by its rules.如果你参加俱乐部, 你就得遵守它的规章.You must abide by what you have said.你说话要算数....