A contract is either bilateral or unilateral.

合同可以是双边的或单边的。

youdao

In determining the meaning of the language of a commercial contract, and unilateral contractual notices, the law therefore generally favors a commercially sensible construction.

要确定商业合约、单方合约性通知中语言的含义，法律此处倾向于商业合理性的解释。

youdao

But the gift contract is a unilateral and gratuitous contract. So to protect the donator's benefit the Law should allow the donator to have the right of revocation in some special situation.

但因赠与合同系单务、无偿合同，所以为维护赠与人的利益，法律应于特殊情形下，允许赠与人撤销赠与。

youdao

"As a result we have no alternative but to accept his unilateral decision to rescind his contract, " the statement added.

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