常見(jiàn)例句If a square matrix has a left inverse or a right inverse then it is invertible (seeinvertible matrixfor other equivalent statements). 矩陣是半正定當(dāng)且僅當(dāng)其每一個(gè)特征值大于或等于零。A construction of left inverse semigroups 左逆半群的構(gòu)造He left his job largely because he was homesick. 他辭職不干主要是因?yàn)樗爰摇?/li>He left when the band began to beat out pop music. 樂(lè)隊(duì)一奏起流行音樂(lè)他就走了。She got her spunk up and left the country. 她一怒之下離開(kāi)了這個(gè)國(guó)家。No sooner had we left the village than it began to rain. 我們剛離開(kāi)村子,天就下起雨來(lái)了。 返回 left-inverse