Gōngsī de guīzhāng zhìdù, měigè yuángōng dōu yào lànshúyúxīn.
Every employee must know the company's rules and regulations by heart.
Tips
memory
烂熟 literally means 'cooked to mush' — so thoroughly cooked it falls apart. Applied to memory, it means you've processed the material so completely it's part of you.