The new manager promised that no employee would be held in thrall by unreasonable overtime demands.

新任經理承諾，不會有任何員工因不合理的加班要求而受到奴役。

Workers on the cargo ship said the agency kept them in thrall through unpaid debts.

貨船上的工人表示，仲介公司以未付清的債務奴役他們。

The hiring policy protects contract staff from falling into thrall to a single recruiter.

這項招聘政策保護約聘員工，避免他們被單一招募人員奴役。