Gemi
abbr. grating efficiency measurement instrument 光栅效率测量设备
🗣️ 情景例句
But when Robbie was born,
但当Robbie出生后，
If not, our repairman can come to you.
要不然，我们的维修人员可以上你那里去。
Is it in one of your pockets ?
那张纸在你的口袋里吗？