smiler
n. 微笑者
例句
Mr Kim is an ace non-smiler.
金先生无疑是一位冷面高手。
Okay. Please arbitrarily decide on the smiler.
好,请任意选择微笑者。
Now, the person who is the mandated smiler, on three, please smile. One, two, three. Okay.
现在,要求微笑的一方,我数到三,微笑,一,二,三。