mitosis: in biology, type of cell division that results in two nuclei each having the same number and kind of chromosomes as the parent mucleus 有丝分裂shabby: adj. faded and worn, dingy, dilapidated; contemptible 卑鄙的aback: adv. take back abandon: v. give up; forsake, desert 放弃abashed: adj. embarrassed, disconcerted 窘迫的abate: v. make or become less strong 减弱abbreviate: v. shorten, especially represent (a word) by a part of it 缩写babel:n confused noise of voices; scene of confusion 嘈杂声,混乱场面你自己选些简单的