Weed-free
[醫]無水藻的
?? 詞語組成解析
weed
[wid]
n. 雜草;大麻;廢物;煙草;
vt. 給…除雜草;除（草）;消除;
vi. 除草;
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
This method should be widely promoted.
這種方法應該推廣。
The older the goose the harder to pluck.
越老越狡猾。
What kind of price did you have in mind?
你說多少呢？