Photoplethysmograph
光体积描记器
🗣️ 情景例句
As for salary, I leave it to you to decide after experience of my capacity.
至于薪水，还是等检验了我的能力之后由你们再作决定。
All of those houses have been built in the last ten years.
所有那些房子在这10年里被造的。
Have you received a letter from Jim yet?
你收到了吉姆的来信没有？