形容词
中文翻译：无话可说的
同义词：
['silent', 'dumbfounded', 'tongue-tied例句：1. He was speechless when he saw the unexpected news.（他看到这个意外的消息时，哑口无言。）']
例句：
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1. He was speechless when he saw the unexpected news.
他看到这个意外的消息时，哑口无言。
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2. The teacher asked the students to speak in class without speaking a word.
老师要求学生们在课堂上发言，一个词都不说。
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3.She was speechless with shock at the sudden turn of events.
她对突如其来的事件感到震惊，一句话也说不出来。