Isocyclic stem-nucleus
[化] 等环母核
🧩 词语组成解析
[化]等节环(型)的, 同素的, (尤指)碳环型的(=carbocyclic)
stem
[stɛm]
n. （花草的）茎;词干;（高脚酒杯的）脚;烟斗柄;
vt. 遏制[阻止]（液体的流动等）;阻止;封堵;遏止;
🗣️ 情景例句
I need some.
我确实需要。
I'm swimming at the lake.
我在湖边游泳。
I am used to traveling by air and only on one occasion have I ever felt frightened.
我习惯了乘飞机旅行，只是有一次把我吓坏了。