也就是說

Also; too; as well; (not...) either; particle used to indicate affirmation, doubt, or exclamation; also used to link clauses or adjust tone.

Function word indicating then or so; immediately; precisely; exactly; only; to approach; to move towards; to undertake; to complete; to go with.

To be; yes; correct; right; true; to affirm; to acknowledge; a surname; a thing; indeed.

to speak; to say; to talk; to explain; to discuss; to scold; to tell off; a theory or doctrine; to arrange a marriage