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Chinese dictionary
n.half a lifetime (period of life before or after middle age); half of one's life
上半辈子
the first half of one's life
后半辈子
second half of one's life
我活了半辈子了,还不知道这个吗?
How can a person of my age be ignorant of such a thing?
前半辈子
first half of one's life
大半辈子
the greater part of one's life
下半辈子他打算做什么?
What's he planning to do with the rest of his life?
antonym