为了得到他人的认可，英语可以说 "In order to gain recognition from others."

"得到领导的认可" 可以翻译为 "Obtain approval from the leadership."

承认认识某人用英文可以说 "Admit knowing/recognizing someone."

不断的努力才能得到别人的认可，英语可以表达为 "Continuous effort is necessary to earn recognition from others."

承认某人做某事，英语可以说 "Admit that someone has done something."

得到社会的认可和赞扬用英语可以表达为 "Receive social recognition and praise."