Semihydrogenation

半氫化

??? 情景例句

I'm sorry, but I've got to be on my way.
很抱歉,我必須走了。
To argue with the opponent about the principles
和反對(duì)者爭(zhēng)論基本事項(xiàng)
Li Lei went into the school and found Miss Zhao in the school library.
李壘走進(jìn)學(xué)校,在學(xué)校圖書(shū)館里找到趙小姐。
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