词汇	ferromanganese formations
释义	ferromanganese formations 壤铁锰形成物
随便看	put someone on guard put someone on her guard put someone on her mettle put someone on his best behavior put someone on his best behaviour put someone on his ear put someone on his feet put someone on his good behavior put someone on his guard put someone on his honor put someone on his honour put someone on his mettle put someone on its feet put someone on my guard put someone on my mettle put someone on oath put someone on our guard put someone on our mettle put someone on something put someone on the block putsomeoneon the grill put someone on the grill put someone on their guard put someone on their mettle put someone on the lookout