分词翻译
投的英语翻译：
cast; deliver; fling; pitch; send; throw
【医】 administer机的英语翻译：
chance; crucial point; engine; machine; occasion; organic; pivot; plane
flexible
【医】 machine买卖的英语翻译：
merchandise; marketing; bargain; buying and selling; trade; transaction
【经】 bargain; commercial act; commercial transaction; handle
