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2 Noun 0 Verb 0 Adj. 0 Adv.
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ENexertionNoun
EN
Use of physical or mental energy; hard work
effortelbow grease
bn:00029899n Concept
JA
力行（りっこう、りきこう、りょっこう、りょくこう）とは、鉄道において電車や機関車等のモーターやエンジンの動力を車輪（駆動輪）に伝えて加速、または上り勾配で均衡速度を保つこと。
bn:09801045n Concept

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