Cationic catalyst
[化] 正离子催化剂
🧩 词语组成解析
[医] 阳离子的, 阴向离子的
🗣️ 情景例句
Good.
好极了。
If two men ride on a horse, one must ride behind.
两人同骑一马，必有一人在后。
The twin towers are 110 storeys high, but high-speed lifts controlled by computer take only a minute to reach the top.
这座双塔式大楼有110层高，而由电脑控制的高速电梯只需一分钟就可以到达塔顶。