🧩 词语组成解析
class
[klæs]
n. 班;等级;阶级;种类;
vt. 把…归入某等级,把…看作(或分类、归类);把…编入某一班级;
adj. 很好的,优秀的,出色的;
vi. 属于…类(或等级),被列为某类(或某级);
[pl.][动]钵水母纲
🗣️ 情景例句
Did he ever get over it?
他有忘掉这件事吗?
I'm glad you enjoyed it.
你喜欢我就高兴。
and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
测出回声间隔的时间,便可算出该处海洋的深度。