更不用说 (let alone / not to mention)
"…let alone…" with more更needless to say不用说
- … ，more更needless to say不用说 … = "…, let alone / not to mention …".
- he / him他to link连to walk走路all / both都difficult / hard难，more更needless to say不用说to run跑步 = "he can hardly walk, let alone run."
- State the hard case first; more更needless to say不用说 adds the even-harder one.
(hard case)，more更needless to say不用说 + X
- more更needless to say不用说 tacks on something even more out of reach.
he他even连walk走路even都hard难，let alone更不用说run跑步。
- more更needless to say不用说to run跑步 = "let alone running."
Explore
Correct or broken?
更不用说 dismisses the harder case after the easier one already failed.
Practice
He can hardly walk, let alone run: 他连走路都难，____ 跑步。
(hard case)，更不用说 + X = let alone X: 更不用说跑步.
Practice
更不用说 adds something even harder / more out of reach.
Yes — 连走路都难，更不用说跑步.
Recap
Key idea
- (hard case)，more更needless to say不用说 + X — "…, let alone / not to mention X"
- to link连to walk走路all / both都difficult / hard难，more更needless to say不用说to run跑步
- The hard case comes first; X is even harder
Read the full reference: HSK 5 grammar — Let alone.
Practice
Where does the harder case (X) go?
State the hard case first; 更不用说 + X is even harder.