Spherical shell
[化] 球壳; 球形壳体
🧩 词语组成解析
shell
[ʃel]
n. （贝、卵、坚果等的）壳;外壳;炮弹;（人的）表面性格;
vt. 去壳，脱落;炮击;
vi. 剥皮;炮轰;
🗣️ 情景例句
Are all the classes within walking distance?
所有的教室都在步行范围之内吗？
I dislike snakes.
我讨厌蛇。
who produced it with a flourish and pointed out a microscopic 'o' beside the time of the arrival of the train at his station;
站长拿着时刻表一挥手，指着那趟列车到站时刻旁边一个很小的圆圈标记。