恳切的英文：
sincere
genuine

参考例句：

He spoke with such earnestness and lucidity that he made Tang Yun-shan feel rather small and regret his suspicions
他这一番话，又恳切，又明晰，倒使得唐云山感觉到自己先前的猜度——以为中间有几分奥妙，未免太不光明正大了。

attentiveness n.
恳切；殷勤

A pressing invitation todinner
十分恳切的赴宴邀请

She readily accepted her landlady's pressing invitation to dine with her.
她接受了女主人恳切的邀请，同她一道吃饭。

Luther's Protestantism is a grand theology, a sonorous earnest hardheaded Christianity
路瑟的新教是一种宏伟的神学，一种恳切响亮、讲求实际的基督教。

His fine success as a salesman lay in his geniality and the thoroughly reputable standing of his house.
作为一个推销员，他的成功要归于他的对人和气恳切以及他服务的那家公司的声誉。

He spoke with such earnestness and lucidity that he made Tang Yun-shan feel rather small and regret his suspicions.
他这一番话，又恳切，又明晰，倒使得唐云山感觉到自己先前的猜度——以为中间有几分奥妙，未免太不光明正大了

sincere是什么意思：
adj. 真诚的，衷心的；诚恳的；诚实的，忠实的；正直的

She‘s a sincere friend.
她是位忠实的朋友。

His sincereness moved me.
他的真诚打动了我。

Misfortune tests the sincerity of friends
患难见真情.

Misfortunes test the sincerity of friends
患难见友情

Misfortune tests the sincerity of friends.
患难见真情。

genuine是什么意思：
adj. 真的；名副其实的；诚恳的；纯种的

Being authentically or genuinely such by birth.
纯种的出身纯正或血统纯净的

Beyond gainsay, it is a genuine Rembrandt.
无可否认地，那是真的伦布兰特（的画）。

I viewed it as a genuine tragedy.
我却认为它是一场真正的悲剧。

This is a genuine vintage wine.
这是真正的佳酿葡萄酒。

Their hearts glow with genuine patriotism.
他们胸中燃烧着忠贞的爱国主义火焰。