立彬の日本語
気苦労で彼は急にふけた。
tbd
Care aged him quickly.
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気苦労， きぐろう
1. worry, care, anxiety, mental exhaustion
tbd
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急に， きゅうに
1. swiftly, rapidly, quickly, immediately, hastily, hurriedly
2. suddenly, abruptly, unexpectedly
3. sharply (of a slope, bend, etc.), steeply
迅速地、快速地、快些、立刻、匆忙地、急匆匆地；突然地；突然间；出乎意料地；(指斜坡、弯道等)陡峭地；陡直地
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老ける， 化ける， ふける
1. to age, to grow old (esp. in appearance), to show marks of age
衰老，变老（尤指外表），显露岁月痕迹、年を取る。
で
1. at, in
2. at, when
3. by, with
4. within, in
5. and then, so
6. and, then
7. let me tell you, don't you know
表示范围
彼， かれ
1. he, him
2. boyfriend
他
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调