🧩 词语组成解析
that's
[[ðæts]]
(=that is)说得更精确些, 简而言之
how
[haʊ]
adv. 怎样;健康状况如何;到何种地步;以任何方式;
n. 方法;方式;
roll
[rəul]
vt. 辗;使（眼球等）左右转动;（使）原地转圈;滚动;
vi. 左右摇晃;翻滚;开始移动，启动;
n. 名册;滚翻;
🗣️ 情景例句
Are you ready?
你准备好了吗
He didn't say anything as to where he would go.
关于他的去处他什么也没说。
as the wave leaves the particles behind back to its starting point again.
当波浪把微粒留在身后时又回到出发点。