1. how?
2. what?
3. why?

1. not to know
2. unaware
3. unknowingly
4. fig. not to admit (defeat, hardships, tiredness etc)

1. (bound form) way; reason; principle
2. (bound form) a skill; an art; a specialization
3. (Daoism) the Way; the Dao
4. to say (introducing a direct quotation, as in a novel)
5. (bound form) to express; to extend (polite words)
6. classifier for long thin things (rivers, cracks, shadows etc), barriers (walls, doors etc), questions (in an exam etc), commands, courses in a meal, steps in a process
7. (old) circuit (administrative division)

classifiers: 條, 股

1. (obsolete on its own in Standard Chinese) alternative form of 導 /导 (dǎo, “to direct; to guide; to lead; to conduct”)
2. alternative form of 導 /导 (dǎo, “to direct; to guide; to lead; to conduct”)

1. particle indicating that a previously asked question is to be applied to the preceding word ("What about ...?", "And ...?")
2. particle for inquiring about location ("Where is ...?")
3. particle signaling a pause, to emphasize the preceding words and allow the listener time to take them on board ("ok?", "are you with me?")
4. (at the end of a declarative sentence) particle indicating continuation of a state or action
5. particle indicating strong affirmation