快乐笑声
Happy laughter
以上为机器翻译结果，长、整句建议使用 人工翻译 。
默里·皮克虚伪的笑声里没有一点快乐。
Murray Pick's hollow laugh had no mirth in it.
《柯林斯英汉双解大词典》
眼泪和笑声一样常见，悲伤比快乐更复杂。
Tears are as universal as laughter, and grief is more complex than joy.
youdao
笑声和快乐能感染他人。
Laughter and happiness can be contagious.
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