Nilo
镍铬低膨胀系数合金
✅ 同义词
🗣️ 情景例句
Are you sending it by regular or by speed?
你要寄平信还是快递？
You'll hurt your finger, if you don't take care.
你不专心的话，就会伤到你的手指。
Is it too small?
这件太小了吧？