v.t./i.動詞 (及物/不及物)開始營業They will open the new bridge next week
adj.形容詞開放的;可以自由參加的I saw the open library and went in to read a magazine
adj.形容詞不掩飾的His face is open and he hides none of his feelings
adj.形容詞營業的When is the restaurant open?
v.t./i.動詞 (及物/不及物)開業The food store is scheduled to open for business in August
adj.形容詞沒有限制的I plan to come to the university for open enrollment, where anyone can choose classes
v.t./i.動詞 (及物/不及物)張開Open your mouth please
adj.形容詞公開的It is an open secret that they love each other
adj.形容詞打開的The door was open so he thought he would just walk straight in
v.t./i.動詞 (及物/不及物)打開Please open the window, it’s hot in here
adj.形容詞公開He is open to the idea of planting trees in the park
v.t./i.動詞 (及物/不及物)開始When will the new mall open for business?
n.名詞公開賽The Paris Open brings new tennis players together to compete
prep.介系詞向...開放The park is open to the public.
prep.介系詞為了...The position is open for applications.