立彬の日本語
兵士たちは警戒しながら国境へ向かった。
tbd
The soldiers proceeded to the frontier with caution.
625
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兵士， へいし
1. soldier
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警戒， けいかい
1. vigilance, caution, alertness, precaution, being on guard
警戒
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ながら， 乍ら
1. while, during, as
2. while, although, though, despite, in spite of, notwithstanding
3. all, both
4. as (e.g. "as always", "as long ago"), in (e.g. "in tears")
5. while doing something else (at the same time)
同时，……期间，一边……一边
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国境， 国界， こっきょう， くにざかい
1. border (between countries), national border
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向かう， 向う， 対う， むかう
1. to face
2. to go towards, to head towards
面向；朝……，向……
たち， 達
1. pluralizing suffix (esp. for people and animals; formerly honorific)
复数后缀
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题
へ
1. to, towards, for
格助词，向，朝，为了