be valuable for sb对吗

be valuable for sb对吗 valuable是BE VALUABLE TO 还是FOR be of value to sb 那be valuable to sb be happy to sb对吗 be sth for sb be vailable for sb. be true for sb. be down for sb 意思是：对……有价值比如是be valuable to the world还是be valuable for sth w be rude to sb还是for sb be important to sb还是for sb be embarrassing to sb还是for sb?