单词:oscillation stroke of rod
[林] 挑杆摆动行程
单词:oscillation stroke of rod 相关文章
This is the VOA Special English Health Report. A stroke is a loss of blood flow in the brain. There are two kinds of stroke. One is an ischemic stroke. It happens when a blood vessel in the brain gets blocked. The other kind is called a hemorrhagic,
发表于:2019-01-11 / 阅读(58) / 评论(0)
VOA慢速英语2008年(八)月