Electrosinogram
[医] 心窦电[流]图
🗣️ 情景例句
Nice to meet you, Mrs. Cooper.
很高兴见到你， Cooper太太。
I've arranged my class schedule so I'll have my afternoons free.
我调整了我的课程表，以便下午腾出空来。
(A light year is the distance which light travels at 186,000 miles per second in one year,
一光年是光以每秒186，000英里的速度在一年内走的距离，