Fissions
n. <物>（原子的）分裂，裂变( fission的名词复数 ); <生>分裂生殖
🗣️ 情景例句
Is this your first trip to China?
这是你第一次到中国吗？
Do you know Mary?
你认识玛丽吗？
And anyone who gave more than a passing thought to the bottom confines of the oceans probably assumed that the sea bed was flat.
凡是稍稍想过大海海底的人大概都会认为海底是平坦的。