pains that some children feel in their arms and legs when they are growing （儿童）生长痛，发育期痛 emotional worries felt by young people as they grow up 青春期的感情焦虑 problems that are experienced by a company, organization, etc. when it begins operating but that are not likely to last （企业）发展初期的困难 Every business experiences its share of growing pains. 每个企业都会经历不断增长的痛苦。