Tā yǐkào zài chuāng biān, wàng zhe chuāngwài chūshén.
She leaned against the window, gazing outside in a daze.
Tips
usage
倚靠 can be used both literally (leaning against a physical object) and figuratively (relying on someone or something for support). Compare with 依靠, which is almost exclusively figurative.