如果你想表达盒子不够大，可以使用英语表达 "The box is too small" 或者 "The box is not big enough."
这个表达方式来源于英语中 "too" 和 "enough" 的用法。"Too" 是一个副词，意思是 "太，过度"。它可以用来修饰形容词或副词，例如 "too hot" 或 "too fast"。"Enough" 是一个形容词，意思是 "足够的，充分的"。它可以用来修饰名词，例如 "enough food" 或 "enough time".
在表达 "The box is too small" 或 "The box is not big enough." 时，"too" 和 "enough" 都用来修饰形容词 "small"。"Too small" 意思是 "太小"，"not big enough" 意思是 "不够大"。
下面是一些使用 "The box is too small" 或 "The box is not big enough." 的例句及其中文翻译：
Example: "I can't fit all of my clothes in this suitcase. It's too small."
Translation: "我把我所有的衣服都装不下这个手提箱。它太小了。"
Example: "I tried to put the cake in this container, but it was not big enough."
Translation: "我试着把蛋糕装进这个容器里，但是它不够大。"
Example: "I need a bigger box to pack all of these gifts. This one is too small."
Translation: "我需要一个更大的盒子来装下所有这些礼物。这个盒子太小了。"