| 例句 |
The room has adequate/poor ventilation.这个房间通风效果好/差。The room was adequately/poorly ventilated.这个房间通风效果好/差。Effective programs are available to safeguard your data against computer viruses.可以找到效果好的程序保护数据，使其免遭电脑病毒侵害。It would have been better to have thinned the trees over several winters rather than all at one time.当初要是分几个冬天疏剪树木，会比一下子疏剪完效果好。 |