I smile and keep quiet.

我微笑着并保持缄默。

youdao

I remember the extraordinary effort it took to keep a smile on my face in those few seconds before he slid from view and I could let myself go amidst the embarrassed silence of strangers.

直到现在我仍记得，电梯门完全关闭之前我们对视的那几秒钟，我是多么努力地保持微笑；电梯门关上，我再也控制不住自己的情绪，旁边的陌生人都尴尬得默不作声。

youdao

"I want to keep going.At least for another decade or two," he said with a smile.

他微笑着说：“我想继续参加比赛，至少会再坚持一二十年。”

youdao