sincere: stresses absence of hypocrisy, feigning, or any falsifying embellishment or exaggeration: offered a ~ apology.   (hypocrisy伪善，假装有美德to pretend to be moral，语气很重，专批hypocrites伪君子，feign巧妙假装，比一般的pretend有技巧些，如feigned sickness to stay home from class装病逃课，embellish细枝末节的装饰，如用花边floral border装饰书页，exaggerate夸张: 说话不合实际不克制，如unable to tell a story without exaggerating讲故事总是夸张)  


wholehearted: suggests sincerity and earnest devotion without reservation or misgiving: promised our ~ support to the cause.   事业    (earnest认真投入sincere devotion，如an earnest student一个认真的学生，海明威全名Earnest Hemmingway)        （misgiving疑虑uneasiness and mistrust，如had misgiving about him from the start开始就对他有疑虑）   （又如to serve the people wholeheartedly全心全意为人民服务)


heartfelt: suggests depth of genuine feeling outwardly expressed: a gift that expresses our ~ gratitude.   (depth深度、深切)   (gratitude感谢或感恩，和thanks意思相同但较正式，如伊索寓言Androcles安德罗克勒斯的寓意是gratitude is the sign of noble souls感恩是高尚灵魂的标志)


hearty: suggests honesty, warmth, and exuberance in the display of feeling: received a ~ welcome at the door.


unfeigned: stresses spontaneity and absence of pretense or simulation: her ~ delight at receiving the award.    (spontaneous自发，表示没人要求或催促)   (simulate仿真: 高度逼真的模仿，没有贬义，如the training chamber simulates a weightless atmosphere训练室模仿(仿真)了失重环境)


sincere真诚: 强调不伪善假装修饰夸张，wholehearted全心全意: 真诚认真地投入，没有保留疑虑，heartfelt深深: 形容深切，hearty诚挚: 表示诚实温暖洋溢，unfeigned自然流露: 强调自发，而非假装模仿


记忆方法: 1) 首字母SWHHU想成好坏无(U)所谓(SW)<==真诚就好        "诚"，从言成声，本义是"诚实真实无妄"，如真诚诚实忠诚诚心诚意 ；可作为副词，仍表示"真实真正"，如诚然诚如心悦诚服。从构成上看，"言"作形旁表示其本义与言语有关，多半由言语表达，"成"的本义为成就完成，用在这里表示真实无妄必须是完成、真实的东西，不能是未完的、虚假的。

               2) 真诚的意思是真实地表达情感mean genuine in feeling or expression.首字母SWHHU想成好坏无(U)所谓(SW)<==真诚就好   (genuine比authentic更突出真诚真实，如genuine piety真诚的同情，比较an authentic story真实故事)