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[經] 一片, 一期, 一批
??? 情景例句
Workers have to work very hard to keep bread on the table.
工人得十分努力工作才能賺錢糊口。
I'd love to, but I have to get up early tomorrow.
我是很想再喝一點，但我明天得起早。
No matter how hard I tried, it was impossible to fill this beautiful pen with ink and to this day it has never written a single world!
然而不管我如何擺弄，那枝漂亮的鋼筆就是吸不進墨水來。直到今天，那枝筆連一個字也沒寫過！