Pneumogastroscopy
[医] 充气胃镜检查
🗣️ 情景例句
That's alright. You're a lot of help.
没关系。你帮了很大的忙。
He cleans th badroom every day.
他每天都清理卧室。
a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）