吃力地走
這一組就是核心畫面本身，沒有比喻。爛泥、上坡、大雨、重行李，腳一步一步硬走。
verb · C1
To travel a long way with difficulty, usually on foot, moving slowly and steadily because the ground, the weather, the load, or the distance makes every step hard.
吃力地走／跋涉
核心畫面
Picture someone walking through deep mud. Every step costs effort, the foot comes up heavy, and still they keep going. That weight sits inside every use of slog: heavy, slow, no skill in it, and it does not stop. Whether the mud is a hill, a pile of work, an opponent who will not give in, or a ball waiting to be hit, the word is always about force and staying power rather than about being quick or neat.
可以想成一個人走在很深的爛泥裡。每一步都要出力，腳拔起來很重，可是他沒有停。slog 的每個意思都留著這股重量：出力…更多收起
可以想成一個人走在很深的爛泥裡。每一步都要出力，腳拔起來很重，可是他沒有停。slog 的每個意思都留著這股重量：出力、很慢、沒有技巧、而且一直來。爛泥可以換成一座山、一疊工作、一個不肯讓步的對手，甚至換成一顆等著被打的球。不管換成什麼，這個字都不是在講快，也不是在講漂亮，它在講「硬」。From the word’s history
The sources say slog is probably a variation of slug, meaning to hit very hard, and possibly connected to slough, a muddy place. Both roads lead to the same feel: heavy force, and heavy ground.
字典說 slog 可能是 slug（重重地打）的變體，也可能跟 slough（爛泥地）有關。這兩條線索指向同一種感覺：一邊是很重的力氣，一邊是很重的地面。這也解釋了為什麼「用力揮棒」和「在泥裡硬走」會是同一個字。
Wiktionary entry supplied in packet (source_ref kaikki:3f6f69a190036ae4:723127871): Probably a variation of slug (to hit very hard) or slough.
Four branches
硬做的活
把腳下的爛泥換成手上的工作。地面的阻力變成時間和無聊，而人沒有停這件事完全沒變。
verb · C1
To keep working hard at something for a long time without stopping, especially when the work is slow, tiring, or boring.
埋頭苦幹
硬拚到底
這次擋在前面的不是泥，是一個同樣不肯退的人。撐得久的那一邊贏，靠的還是耐力不是技巧。
verb · C2
If two people, teams, or sides slog it out, they keep competing, fighting, or arguing with each other until one side finally wins.
硬拚到底
使重力氣打下去
這一組跟「慢」相反，只有一下，但那股「使盡重力氣、不管漂不漂亮」的味道完全一樣。
verb · C2
To hit something very hard, especially to hit a ball with a bat using strength rather than skill.
用力猛擊