be essential for６短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 vt. 对…必不可少的 Likewise, if the perceived creditworthiness of the government is shaken, then intervention from some outside lender of last resort might be essential for either the second or third cure to work. 同样，如果政府的信誉有所减弱，那么第二点和第三点可能就得由外部最后贷款人来实施了。 blog.sina.com.cn