We had to battle very hard and our defence worked overtime to keep us in the game.为保证我们不被淘汰出局, 我们不得不奋力搏杀, 防守队员拼尽了全力。

She works overtime with her vacuum cleaner to keep grit out of the kitchen.她动用真空吸尘器力争不让厨房出现一粒沙砾。