Tāmen de shìchǎng dìwèi gùruòjīntāng, jìngzhēng duìshǒu nányǐ hàndòng.
Their market position is impregnable - competitors find it impossible to shake.
Tips
memory
固 (solid) + 若 (like) + 金 (metal/gold) + 汤 (boiling water): 'solid as metal walls over a moat of boiling water' - an ancient fortification image that means 'nothing can get through'.
