The republic's factories have closed for the weekend to conserve energy.为了节约能源，该共和国的工厂周末不开工。They had to conserve the candles now with winter upon them.冬天眼看就要到了，他们不得不把蜡烛省着用。He writes on both sides of the sheet to con...
I perceived a change in his behaviour.我注意到他举止有些改变。On entering his house, we at once perceived him to be tasteful.我们一进他的房子, 立刻感觉到他是个高品位的人.They perceived that the enemy was trying to wear down their resistance.他们明白敌人是想用消耗的...