Minalpha
锰铜标准电阻丝合金
🗣️ 情景例句
Away from the telephones and account books.
远离电话和帐簿。
Necessity and opportunity may make a coward valiant.
需要和机会，可使懦夫变勇敢。
Between twelve and eighty years we gradually lose this power;
除在12岁至80岁之间，我们逐渐丧失这种能力。