复数： grins
第三人称单数： grins
过去式： grinned
过去分词： grinned
现在分词： grinning

And on his face is plastered a grin of purest exhilaration .

但是他咧着嘴，脸上满满兴奋的笑容。

' I didn 't know that cats could grin , 'said alice .

“我不知道猫会咧着嘴笑，”爱丽丝说。

He had a large grin on his face .

他咧嘴笑得很开心。

He dipped his shoulders , produced a tight grin that tapered to a grimace at both corners of his mouth .

他肩膀向下倾斜，紧闭的嘴唇咧了开来，在嘴角处又逐渐合拢，一脸怪相。

Is green tea really as great as my wife says it is , and should I try to grin and bear it and gulp it down ?

绿茶真的向我妻子说的那样营养？或是我应该试着咧着嘴勉强把它喝下去哪？