field method的用法和樣例：
例句
- The field investigation found a history of exposure to sick poultry around her house.
現場(chǎng)調查發(fā)現有與其住宅周?chē)牟∏萁佑|史。 - Field investigations have not found any indications of respiratory illness in close contacts of the young man.
現場(chǎng)調查未發(fā)現任何跡象表明在該年輕男子的密切接觸者中出現呼吸道疾病。
