Left null element
[计] 左零元
🧩 词语组成解析
left
[lɛft]
adj. 左边的，左侧的;左派的;
n. 左，左面;[军]左翼;左派，激进分子;
adv. 向左;在左边;
v. 离开( leave的过去式和过去分词);
element
['ɛləmənt]
n. [化]元素;要素;原理;[电]电阻丝;
🗣️ 情景例句
Drug dependence should be looked at as a medical issue, not a criminal one.
毒品信赖应该被看成是医学问题，而不是犯罪问题。
Gifts from enemies are dangerous.
敌人礼，藏危险。
Once a year, a race is held for old cars.
旧式汽车的比赛每年举行一次。