Smog-free
[醫]無煙霧
?? 詞語組成解析
smog
[smɑ?ɡ]
n. 煙霧;煙塵;煙霧污染;
free
[fri]
adj. 自由的;免費的;免稅的;空閑的;
adv. 免費地;自由地，無拘束地;一帆風順地;
vt. 免除;釋放;使自由;解救;
??? 情景例句
about your salaries and your savings.
關于薪資和儲蓄。
No, I'm sorry, sir. We don't accept checks.
先生，對不起，我們不接受支票。
What was the population of the less developed countries in 1950?
1950年不太發達國家的人口是多少？