Hardenfast
哈登法斯特混凝土速凝剂
🗣️ 情景例句
I'm off today.
我今天休假。
To plan a mountain climbing expedition.
计划登山探险。
I think it would be a good idea to have comments from secretaries and typists who are already using it. Then they can express their satisfaction with the product.
我认为，听听使用过这种计算机的秘书和打字员的反映，倒是个好主意。他们可以发表对产品满意的意见。