\\\"the main library and its auxiliary branches\\\"
added to complete or make up a deficiency;
\\\"produced supplementary volumes\\\"
造句
用作形容詞(adj.)
Supplemental hydrogen is produced using a generator, specifically designed to extract the hydrogen and oxygen from the water. 補充的氫是用一種專門設計的用來從水中提取氫氣和氧氣的發生器來產生的。