asserted

1.

A medieval chemical philosophy having as its asserted aims the transmutation of base metals into gold, the discovery of the panacea, and the preparation of the elixir of longevity.

炼金术，炼丹术中世纪的一种化学哲学。其声称的目标是将一些基本金属转变为金子，发现万灵药及制备长生不老药

2.

His friends asserted that he was innocent.

他的朋友们断言他是清白的。

3.

She asserted her innocence/that she was innocent.

她坚称自己很清白[她是无辜的]。

4.

She asserted that he was innocent.

她断言，他是无罪的。