惟一

惟一 [wéi yī]

1. ■ only; sole; unique:

惟一出路 the only way out;

惟一的理由 the sole reason;

惟一合法的政府 the sole legitimate government;

惟一可行的办法 the only feasible way;

实践是检验真理的惟一标准。 Practice is the sole criterion of truth.