pleased,pleasing,pleasant,pleasure
    
        
            | pleased | adj.感到满意的;高兴的 用于描述人的情感。 | 
        
            | pleasing | adj.使人愉快的;令人满意的 指令看到、听到、想到的人高兴、满意。 a   pleasing plan令人满意的计划 | 
        
            | pleasant | adj.令人愉快的;舒适的;礼貌而友善的 描述人或事物的性质。表示“令人愉快的,惬意的”时,可与pleasing互换。表达天气、气候宜人时,通常用pleasant。 a   pleasant climate/evening/place令人愉快的气候/夜晚/地方 | 
        
            | pleasure | n.快乐;乐事 with   pleasure当然了,很愿意(别人请求帮助时的答语,表示乐意去做) It's   a/my pleasure.别客气。(帮助别人之后,对别人感谢的答语) | 
    
 
[即学即练] 用please的正确形式填空
①We had a pleasant/pleasing trip and we all felt pleased.
②I'm so pleased that you're able to come to my birthday party.
③Our main aim is to please the customers.
④He showed no sign of pleasure when seeing her.