Reluctometer
磁阻签质仪(检查钢制品质量)
🗣️ 情景例句
My eyesight sucks.
我的视力非常差。
When did this happen?
这件事情什么时候发生的？
George showed me to the guestroom which, he said, was rarely used.
乔治把我领进客房，说这间很少使用。