Tā méiyǒu rènhé jiārén kěyǐ yǐkào, zhǐnéng dúzì miànduì kùnnán.
He has no family to rely on and must face difficulties alone.
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 (yīkào), which is almost exclusively figurative.