🧩 词语组成解析
smooth
[smʊð]
adj. 光滑的;流畅的;柔软的;温和的，安详的;
vt. 使平滑;排除，消除;安抚，平息;使优雅;
vi. 变平和，变缓和;
n. 平地，平面;
aster
[['æstə]]
n. 紫苑属植物\\n[医] 星体
🗣️ 情景例句
I'd like to buy some stamps for this letter.
我想买这封信的邮票。
This professor has put all of his students to sleep except two.
这位教授使得除了两人以外的所有学生都入睡了。
Anyone who has played even in a school football match knows this.
即使是仅仅参加过学校足球赛的人也有种体会。