Microdensitometry
微密度测定
🗣️ 情景例句
And programs that don't leave anyone out.
而且是些不排拒任何人的活动。
My father is vacationing in the north.
我父亲正在北方度假。
Can I have the key to the front door please?
我能带上前门的钥匙吗？