（願您）笑口常開，
（願您）周末愉快！
註smile本來就是可數名詞，自然可以用作復數。《牛津高階英漢雙解詞典》有例句曰：He had a big smile on his face. 還有壹個習慣用語與smiles有關，即：be all smiles。該習語中，smile為名詞，且必須加s，《牛津習語詞典》釋義為：be very happy and smiling, especially after feeling sad or worried about something. 在這裏，smile用作復數，不妨譯作：笑口常開。