Step-reaction polymerization
[化] 逐步聚合; 逐步聚合反应
🧩 词语组成解析
step
[stɛp]
n. 步，脚步;步骤，手段;步调;级别;
vt.& vi. 举步，行走;踩，踏上;跨入;轻快地走;
vi. 踏，踩;走;
vt. 跳舞;迈步;使成阶梯状;
n. 聚合\\n[化] 叠合反应; 聚合; 聚合反应
🗣️ 情景例句
Excuse me, May I have everyone's attention, please?
对不起，请大家听我说。
I've got a terrible pain in my stomach.
我的胃很痛。
Suddenly a raft appeared, looking rather like Noah's ark, carrying the whole family, a few hens, the dogs, cat, and bird in a cage.
突然，出现了一只筏子，看起来很像诺亚方舟，上面载着他们全家老小，还有几只母鸡、几只狗，一只猫与一只鸟笼，那里头有一只小鸟。