Bettering
v. 改善, 提高( better的现在分词 )
🗣️ 情景例句
Have a nice stay.
希望你们住得愉快。
Our guarantee covers maintenance for both parts and labor.
我们的保证是包括更换零件和免费保养。
The most wonderful piece of machinery on show was Nasmyth's steam hammer.
其中最奇妙的是内史密斯的蒸汽锤。