Gemi
abbr. grating efficiency measurement instrument 光栅效率测量设备
🗣️ 情景例句
I went to the supermarket to get a few things,
我去一趟超级市场， 买了几样东西，
A house divided against itself cannot stand.
家庭内讧难维系。
but as a special favour, he would let me have it for $30.
作为特别优惠，他愿意让我出30英镑成交。