In conclusion, more theoretical and experimental research must be conducted.总之, 必须进一步开展理论和试验研究.In conclusion, the writer warned his young readers, " You must guard against falling in love.最后作者教训似地劝告青年: “ 应该反对恋爱,不可轻惹情丝. ”...
Jig plates can be divided into fixed , hinged demountable and swing types.常见的钻模板有固定式、铰链式、可卸式 、 悬挂式等四种结构形式.Oil prices continued an upward swing in New York this morning.今天上午纽约油价继续上扬。His moods swing alarmingly.他的心情时好时坏，令人担...