Stepped sprue
[机] 分级进模口
🧩 词语组成解析
v. 踏；行走（step的过去式和过去分词）
n. 浇口, 熔渣, 口炎性腹泻\\n[化] 浇口; 铸口; 流道
🗣️ 情景例句
That's backbreaking work and may be too much for us.
这可是累人的工作， 我们可能负荷不了。
Oh well, you'll just have to remember their names.
好吧，你们只好记住他们的名字了。
They plan to immigrate to Finland next year.
他们计划明年移居芬兰。