1.Flustered 慌張的

2.Perception, vision, eyesight, perceive, 3.perceiptual, awearness, consiousness, cognition, illution, notion

4.Recollect, past can only recollect

5.initial, subsequent, preniminary, prior, final, eventual, previous，early, begin

6.assert, affirm, allege, maintain, testify, claim

7.firm, forceful, steady, stable, settled