根据法律,他们必须提供合同。
They have to provide a contract ___by ___law.
根据法律,瑞典的组织和公司被迫提出雇佣更多女性并改善她们条件的计划。
Swedish organisations and companies are forced ___by ___law to put forward programmes for employing more women and improving their conditions.
根据法律,雇主必须确保工作场所安全。
Employers are required ___by ___law to ensure workplace safety.