Definition: to see something and be aware of it Level: B1
我注意到天花板上有条裂缝。
I ___noticed a crack in the ceiling.
玛丽向那个男人挥手，但他似乎没注意到。
Mary waved at the man but he didn't seem to ___notice.
你注意到她是怎么做到那件事的吗？
Did you ___notice how she did that?
