Replaceable unit
[计] 可替换装置
🧩 词语组成解析
replaceable
[ri'pleisəbl]
adj. 可代替的;
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
Harry, if Michelle doesn't want to go,
Harry如果Michelle不想去，
Please excuse me.
不好意思，请让一下。
But here we come up against the most difficult of all obstacles to contact with people on other planets ----the astronomical distances which separate us.
然而，在和外星人联系中我们遇到的最大困难是分隔我们的天文距离。