Posiode
正温度系数热敏电阻
🗣️ 情景例句
At 4, but I have to leave by 3:00 to get there on time.
四点，不过我三点必须离开，才能准时到那里。
Without danger we cannot get beyond danger.
没有危险就不能解除危险。
I'm very much interested in your personal computers.
我对你们的个人电脑深感兴趣。