provided against短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 v.预防 We must be provided against every contingency. 我们必须防备一切意外。 tingroom We provided against a poor crop. 我们防备歉收。《21世纪大英汉词典》 Some are involved in the immune system, and presumably became more common because of the protection they provided against disease. 一些参与了免疫系统，想必是由于他们对疾病的防御而变得更普遍。 yeeyan