Work upon
公共 Public对...起作用；影响
🧩 词语组成解析
work
[wɝk]
vt.& vi. 使工作;使运作;操作;使产生效果;
n. 工作，操作;著作;工厂;行为，事业;
vt. 使工作;操作;经营;使缓慢前进;
upon
[ə'pɑn]
prep. 在…上面;当…时候;
🗣️ 情景例句
Joan?
是简吗？
If I had had time,I would have called you.
如果我有时间，我就打电话给你了。
I mean powder that is made from fish, blood and bone.
我是指用鱼、血和骨头制成的粉末。