非常坚强 as tough as old boots ; tenacious determined

我们的友谊非常坚固 Our friendship is strong ; Our friendship is very solid ; Our friendship is very strong

非常坚强的人 tough cookie

非常坚定 VERY FIRM

形容非常坚定果断 resolutely firmly determinedly ; determinedly ; firmly ; resolutely

我的立场非常坚定 I stand resolute

赛车非常坚固耐用 the race car is very strong and durable

反复无常的坚定的 capriciousresolute ; capricioussteadfast

耐家常洗涤坚牢度 fastness to home washing

农机打假应坚持经常 Hebei Farm Machinery