Even in tough times, he would force a smile.

即使在困难时，他也会强颜欢笑。

She tried to force a smile to hide her sadness.

她试图强颜欢笑，以掩饰自己的悲伤。

I force a smile on my face.

强颜欢笑.

Force a smile is now I have not had a chance to take off the mask.

强颜欢笑现已是我没有机会摘掉的面具。

The news made her heart sink, but she still managed to force a smile .

听到这个消息，她心里一沉，但还是勉强挤出一点微笑。

Know when to throw a laugh, know how to force a smile , whatever the intention …

知道什么时候扔出一个嘲笑吧，也知道怎样强颜欢笑，无论什么目的…