healthful: implies a beneficial contribution to a healthy condition: ~ diet will provide more energy.     针对健康幸福用benefit有益，针对钱财物质用profit有利


healthy: like healthful, applies to what promotes good health and vigor: a ~ climate.      vigor活力强调能够"长时间"地活动，energy能量强调能够"高强度"地活动，形容词vigorous和energetic，如still vigorous and sharp in his seventieth year70岁人仍富有活力思维敏锐用vigorous，如an energetic wife, mother, and career woman能量充沛的妻子母亲职业女性用energetic


wholesome: applies to what benefits, builds up, or sustains physically, mentally, or spiritually or to what is not detrimental to health or well-being: ~ foods; the movie is ~ family entertainment.          wholesome表示有益处无害处，又如wholesome snack/people/friends/values健康小点/良人/益友/健康的价值观    sustain长时间支撑维持=to support for a long time，如the planet cannot sustain life该行星不能维持生命, sustainable development可持续发展     well-being幸福康乐，指既健康又快乐being both healthy and happy，如为人民谋幸福中的幸福用这个词well-being.


salubrious: applies chiefly to the helpful effects of climate or air that is devoid of harshness or extremes: the ~ climate of the American Southwest.   be devoid of完全没有


salutary: describes something corrective or beneficially effective, even though it may in itself be unpleasant: a ~ warning that resulted in increased production.   如this accident is a salutary lesson/experience/warning/reminder这次事故是一个有益的教训/经验/警告/提醒


healthful健康: 指有益健康的，healthy健康: 同healthful，wholesome健康无害: 指有益促进维护身心健康，或无害健康的，salubrious气候健康: 主要指气候或空气不严酷不极端的，salutary有益: 表示能纠正的有益的（尽管往往让人不愉快）


记忆方法: 1）首字母HHWSS排序成WHSHS为何是好事<==因为健康           healthy派生自动词heal表示伤口愈合疼痛缓解suggests a restoring of a wound or sore，如his wounds were slow to heal他的伤口愈合缓慢

         2) 练习一下

         3）健康的意思是有益健康mean conducive or favorable to the health or soundness of mind or body.   healthy健康sound无疾病