The main objective of the paper is to give the specific forms of the meromorphic solutions of the equation
$f^{n}(z)f(z+c)+P_{d}(z,f)=p_{1}(z)e^{\alpha_{1}(z)}+p_{2}(z)e^{\alpha_{2}(z)}$,
where $c\in \mathbb{C}\setminus\{0\}$, $P_d(z,f)$ is a differential-difference polynomial in $f$ of degree $d\leq n-1$ with small functions of $f$ as its coefficients, $p_1, p_2(\not\equiv 0)$ are rational functions and $\alpha_1$, $\alpha_2$ are non-constant polynomials.
