Electrical alternation ot beart
[医] 心电交替
🧩 词语组成解析
alternation
[ˌɔ:ltə:'neiʃən]
n. 交替，轮流，间隔;交替工作;更迭;变换;
abbr. 加班（Overtime ）；圣经旧约（Old Testament）；职业疗法（Occupational therapy）
🗣️ 情景例句
Can't you figure it out?
找不到答案吗？
On many farms you'll find cows and chickens.
在许多农场上你将发现奶牛和鸡。
Rescue workers are therefore drilling a hole on the north side of the mine.
因此，营救人员在矿井的北侧钻了一个洞。