Irv
[医] 吸气储备容量
🗣️ 情景例句
I need some help.
我需要帮助。
Which train do I take to Philadelphia?
去费城乘哪趟车？
Portable boiling elements that can boil small quantities of water are useful when the right voltage of electricity is available.
如果有相配的电压，可以煮少量水的便携式热水装置是有用的。