straight-facedly

常见例句

It was difficult to keep a straight face when he fell over the dog.
当他绊着狗摔了一跤时，大家很难扳着脸不笑。
She say with a straight face she see green spacemen in the back yard.
她面无表情地说她在后院看到绿色外星人。
My father never dotes on any of us. What he gives us is always a straight face.
父亲谁也不宠爱。他给我们的总是一副严肃的面孔。
He has such a strange voice that it's difficult to keep a straight face when he's talking.
他的声音很古怪，说起话来很难让人不笑。