an oral promise 口头答应
He was very happy to have my oral promise.
他很高兴我的口头承诺。
The future seems to hold great promise for HCV specific oral drugs that will be more effective and better tolerated.
未来似乎有望产生更有效更耐受的针对丙肝病毒的口服药物。
An oral agreement is not enough; we must have a written promise.
只有口头协议是不够的;我们必须有一个书面承诺。
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