立彬の日本語
父は若いころ、上手に泳ぐことができた。
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My father could swim well when he was young.
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父， ちち， ちゃん， てて， かぞ， かそ， しし， あて
1. father
父亲
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若い頃， 若いころ， わかいころ
1. one's youth, early life, one's early days, one's early years
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泳ぐ， 游ぐ， およぐ
1. to swim
2. to struggle through (a crowd)
3. to make one's way through the world, to get along (in life)
4. to totter, to lose one's balance
游泳；在人群中艰难穿行；在世上闯荡，谋生；摇摇晃晃，失去平衡
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ことができる， ことが出来る， 事ができる， 事が出来る
1. to be able (to), to be possible (to)
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は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题
に
1. at (place, time), in, on, during
2. to (direction, state), toward, into
3. for (purpose)
4. because of (reason), for, with
5. by, from
6. as (i.e. in the role of)
7. per, in, for, a (e.g. "once a month")
8. and, in addition to
9. if, although
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