Definition (表情)
to make oneself laugh or smile despite not feeling like it; to produce a smile or laugh with effort
勉強擠出笑容；強顏歡笑。
She forced a smile after hearing the news.
聽到消息後，她勉強擠出笑容。
Despite feeling nervous, he tried to force a smile.
儘管感到緊張，他還是試著強顏歡笑。
When they told me the joke, I forced a laugh, but to be honest, I didn't think it was funny at all.
當他們告訴我這個笑話時，我勉強笑了出來，但說實話，我一點也不覺得好笑。