Contractual freedom in that respect was desirable and had the beneficial effect of allowing the parties to carry out their business at the lowest possible costs by placing the obligations of loading and unloading on the persons that were best placed to carry them out.
这方面的合同自由是可取的并有助于允许当事方以最低可能的费用进行其业务，其办法是将装卸的义务交给由最有条件进行这项工作的人来执行。