He raised his hat as a friendly salute.

他举帽亲切致意。

《牛津词典》

She waved a friendly greeting.

她友好地挥手致意。

《牛津词典》

She smiled in a friendly way.

她友好地笑了笑。

《柯林斯英汉双解大词典》

After a while, the dolphins become friendly and are ready to play the language game.

VOA: special.2011.03.22

Which actually is son of Bonacci which is the name of his father who was apparently a very friendly guy. First of all, does anyone know what a Fibonacci number is? Wow.

斐波纳契，它是波纳契的儿子,波纳契是它父亲的名字,听上去是个友好的男人不是吗,谁知道斐波纳契数列？

麻省理工公开课 - 计算机科学及编程导论课程节选

The former Prime Minister of the UK, Tony Blair, tried to maintain a friendly relationship with America.

英国前首相，托尼•布莱尔，曾努力维持与美国的友好关系。

英国的首相们 - SpeakingMax英语口语达人

By barring all media from covering the event, Obama transformed what was supposed to be a friendly visit with a respected and friendly head of state into a back-door encounter with an unwanted guest, who was shooed in and shooed out of the White House without a sound.

CENTERFORSECURITYPOLICY: Obama��s green light to attack Iran

As the action unfolds in Glasgow I'm alongside Jimmy Sinclair of the SFA coaching staff in Torshavn watching the Faroes play Liechenstein in a friendly, a clash of the Euro titans if ever there was one.

BBC: Scotland's lowest ebb

"My target was the third game of the season and I've played a friendly (a 20-17 defeat by Llanelli Scarlets), so I'll take it from there, " said Sackey, who has scored eight tries in his last 15 appearances for England.

BBC: No Wasps bias for Lions - Sackey