点击下方单词,选择对的这个单词
点击下面链接下载与本句相关的学习资源，包括PDF教材和音频练习，方便课后复习：
及物动词
不及物动词
1. 花费;耗费To expend something, especially energy, time, or money, means to use it or spend it.
1. use up, consume fully
e.g. The legislature expended its time on school questions
Synonym: use
2. pay out
e.g. spend money
Synonym: spenddrop
多通过句子记忆单词，而不是单独死记硬背。
