?? 詞語組成解析
tonic
['tɑn?k]
n. 滋補品;奎寧水;<音>主音;<語>濁音;
adj. 滋補的;<語>聲調的;<醫>強直的;<音>主音的;
[醫]Amlexanox
??? 情景例句
Are you the loans-officer?
你是貸款部負責人嗎？
Have you bought any cake?
你買蛋糕嗎？
There was a good talk about the increase in the world's population.
有個關于世界人口增長的談話，很不錯。