英検１級スレ（日本語禁止スレ）

10 ：名無しさん＠英語勉強中 ：2018/12/01(土) 05:14:27.58 ID:yl+U/DAPK.net

Secondly,human employees often make faults.In the aspects concerning with people's life,in particular,human errors might cause magnificient accidents,furthermore,they can find those faults and prevent the accidents from happening.