FAQs About the word is

The third person singular of the substantive verb be, in the indicative mood, present tense; as, he is; he is a man. See Be.

存在,住,呼吸,继续,持续,规则,存在,生存下来,居住,忍受

停止,离开,疾病,消失,结束,蒸发,到期,去世,毁灭,停止

irvingite => 厄文派, irvingia gabonensis => 非洲芒果, irvingia => 非洲芒果, irving langmuir => 欧文·朗缪尔, irving howe => 厄文·豪,