Alfameter
阿尔法仪(用光线反射法测量拉丝模模孔锥角用)
🗣️ 情景例句
then you've got to smile first.
你就得先笑一笑。
Can David foresee the end of the job work?
戴维能预知承揽工作的结果吗？
why have we had no visitors from outer space yet?
那么我们为什么还未见到外层空间来访的客人呢？