(idiomatic) the fish rots from the head

(chiefly literary) truly; indeed; without doubt

upper level

to begin

魚: fish

That's right, you can say that again (that is very true), quite so, I agree

street / traffic / quality of flowing / reputation, name / understanding / in accordance with

as, in accordance with / roughly / street

as; like; similar to / in the same way as; just like / following; as it is written; as described / according to; in accordance with / following the example of; in the pattern of

a word, a term / language, speech