英文句子求解析Just how critical an improved balance of trade is to

Just how critical an improved balance of trade is to a healthy economy 主语原句是an improved balance of trade is critical to a healthy economy促进贸易平衡对一个健康的经济很重要has never been 谓语clearer than it is now 表语整个句子翻译为：促进贸易平衡对一个健康的经济有多么重要,这一点在现在看来无比清晰。