英语词汇were spent on improving怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	were spent on improving
释义	spent — 用光 • 筋疲力尽 • 人困马乏 spent adj — 已用尽的 adj • 用过的 adj spend on v— 用在 v improving adj — 改善 adj on prep — 关于 prep
随便看	word count word cup word cup 1990 word dance word-deed word_default word definition word deleted word description word & design mark word & design mark word & design mark word & design mark word development word device trademark word doc word document word economy worded worded as follows worded differently worded in general terms word ending word ends in w order is placed

英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

spent —