Formal source
[法] 正式淵源, 正式來源
?? 詞語組成解析
formal
['f?:m?l]
adj. （學(xué)校教育或培訓(xùn)）正規(guī)的;方式上的;禮儀上的;
n. <美>須穿禮服的社交集會(huì);<口>夜禮服;
source
[s?rs]
n. 根源，本源;源頭，水源;原因;提供消息的人;
vt. （從…）獲得;發(fā)起;向…提供消息;尋求（尤指供貨）的來源;
vi. 原料來源;起源;尋求來源;尋求生產(chǎn)商（或提供商）;
source(rise)→泉源；源頭
??? 情景例句
Susan, will you marry me?
Susan，你愿意嫁給我嗎？
Goodbye, it was nice meeting you.
再見，很榮幸認(rèn)識(shí)你。
The currents of air that the walls of the ship direct upwards, as well as in the line of its course, are enough to give the great bird with its immense wings sufficient sustenance and progress.
沿船體的上升的氣流和沿航線向前的氣流給這種巨翼大鳥以足夠的浮力和推力。