build sb. up 意思是“使某人得到提高或增强信心”,所以
同义词可以是 boost sb.. up(增强)或 cry sb. up(夸奖)。例如:
Dr. Johnson and I have been trying to build/boost him up physically.
约翰逊医生和我一直试图增强他的体质。
Don't build/cry him up too much. He may disappoint you. 不要过分夸奖他. 他可能使你失望的。
She does everything to build/cry him up. 她用一切方法夸赞他。