"A science fiction cannot not be regarded as a mere entertainment, but in fact it tells the reader much more." "科幻小說(shuō)不能簡(jiǎn)單地看成是供消遣的，而實(shí)際上它給讀者展示更深刻的內容。"
The bullet penetrated three inches into the wall. 子彈穿入墻壁三英寸。
A high-energy electron which penetrates into the metal atom may dislodge one of the inner electrons of that atom. 一個(gè)穿入金屬原子的高能電子可以逐出該金屬原子的一個(gè)內層電子。
