中英成語俚語800對169：固若金湯

　　固若金湯

　　As firm as a rock.

　　eg：He will stick to his stand which is as firm as a rock.

　　中英俚語俗語來源：漢書："皆為金城湯池，不可攻也。 "

　　同義詞：安如泰山 Safe upon the solid rock.

　　反義詞：不堪一擊 The earthen pot must keep clear of the brass vessel.