Study on karyotypes and isozyme of esterase in the natural mutant train——Dayelongcha;
自然突变株系——大叶龙茶核型及酯酶同工酶研究
Primary Establishment of the Spontaneous Mutant Gene Isolation System and Identification of the Mutant Type of the Columnar Apple (Malus Pumila);
自然突变基因分离体系的初步建立与苹果柱型突变体类型的鉴定
Function Studies on Human Androgen Receptor Mutants Identified in Advanced Prostate Cancers;
前列腺癌中自然突变的雄激素受体的功能研究
"a complete, espunexpected, change "
骤变,突变,突然的改变
She felt her body chill suddenly.
她感到自己的身体突然变冷了。
an abrupt end [change]
突然的结局 [变化]
(esp sudden)shift or change
（尤指突然的）转变,改变
"You got home all right," he said, gloomily, of a sudden, his tune modifying itself to one of self-commiseration.
“你昨晚回家还好吧，"他闷闷不乐地说，他的语气突然变得自叹自怜了。
He remarked that it had suddenly grown colder.
他觉察到,天突然变冷了。
His voice broke when he was 15.
他15岁时嗓音突然变了。
Tu Wei-yueh's face suddenly darkened.
屠维岳的脸色突然变了。
Wu Sun-fu's expression changed abruptly:
吴荪甫的脸色突然变了。
In the case of the rabbit,
关于突然变出兔子的事，
Suddenly, her face changed.
突然，她的脸色变了。
(biology) being abruptly enlarged and globose at the tip.
（生）顶端突然变大呈球状。
His look became stormy.
他的脸色突然变难看了。
Suddenly, everything was dark.
突然间，一切都变暗了，
The sky became suddenly covered with dark clouds.
天空突然变得乌云密布。
He was suddenly animated.
他突然变得兴致勃勃。