Spectroprojector
光谱投射器
🗣️ 情景例句
I am calling on behalf of the Private Teacher Company.
我代表家教公司给您打电话。
One scabbed sheep will mar a whole flock.
一羊生癣，群羊受害。
The journey is so smooth that there is nothing to prevent you from reading or sleeping.
旅途平稳，丝毫不妨碍你阅读或睡眠。