n.二烯類

Compounds containing two double bonds are called dienes. 包含兩個(gè)雙鍵的化合物叫做二烯烴。

Dien thoai cua chi con o Viet Nam lan sau a qua me goi a dem ve DL. 姊姊的電話還在越南，下次你過(guò)來(lái)越南媽媽會(huì)請(qǐng)你帶回去臺(tái)灣。

Fourth, Kunming - Jinping - Dien Bien Phu tourism line. 四 是昆明--金平--奠邊府旅游線。

Catherine Nguyen: Do you know our outstanding win in Dien Bien Phu? 你知道,我們的奠邊府大捷嗎?

The challenge we faced in 1954 was to convince the American people of the importance of Dien Bien Phu. 1954年我們所面臨的難題是讓美國(guó)人民真正認(rèn)識(shí)到奠邊府的重要性。

Tran Dien from the company that makes the kits says more people would use LPG if it was more widely available. 制造轉(zhuǎn)化器公司的人員表示，有越來(lái)越多人要使用液化石油氣。