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- left cancellation law [计] 左消去法则
- We then can verify the associative law and the commutative law for multiplication, and the uniqueness of the result of addition indicates the uniqueness and the cancellation law for multiplication. 我们容易验证乘法满足结合律和交换律，并且由加法结果的唯一性得出乘法结果的唯一性和乘法消去律。
- The operation laws including：commutative law, associative law, cancellation law, unity of operation, inverse element, and distributive law between two operations，here we just omit them. 这些运算律包括：交换律，结合律，消去律，运算单位元，运算逆元，两个运算之间的分配律等，在此不再一一说明详细过程。
- He left his job largely because he was homesick. 他辞职不干主要是因为他想家。
- He left when the band began to beat out pop music. 乐队一奏起流行音乐他就走了。
- She got her spunk up and left the country. 她一怒之下离开了这个国家。
- No sooner had we left the village than it began to rain. 我们刚离开村子，天就下起雨来了。
- Some bright spark has left the tap running all night. 哪个小淘气干的聪明事，让水龙头开了一夜。
- Take the left fork at the crossroads. 到十字路口取左边的岔道。
- No food is left in the pantry except some bread. 食品柜里除了一些面包其它什麽也不剩。
- He had a bruise just below his left eye. 他有个伤疤正好在他左眼的下侧。
- Nothing was left for him to hang on to. 他已经没有什么东西可以指靠的了。
- After a day at the races I was left stony broke. 一天赛马会下来，我一贫如洗。
- Our ship left port and headed out to sea. 我们的船离开港口向大海驶去。
- He can be left to work on his own. 工作可交给他一个人去做。
- John's got two left feet when it comes to dancing. 约翰跳起舞来显得笨手笨脚的。
- She wears a diamond ring on her left hand. 她左手上戴着一枚钻石戒指。
- Right-handed batters usually hit to left field. 右撇子击球手把球打到左外野。
- He packed up his things and left. 他把东西装进箱子里就动身了。
- There isn't much space left for your luggage. 剩下的地方不太够你放行李的。
