🧩 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;
n. 锤头, 笨人
🗣️ 情景例句
Hello. Is Susan there?
喂，是苏珊吗？
Man has not a greater enemy than himself.
人之大敌，自己而已。
There was a good talk about the increase in the world's population.
有个关于世界人口增长的谈话，很不错。