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信号， しんごう

1. signal, signalling, signaling 2. traffic light, traffic signal

信号；红绿灯

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青， 蒼， 碧， あお

1. blue, azure 2. green 3. green light (traffic) 4. black (horse coat color) 5. blue 5-point card 6. immature, unripe, young

tbd

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は

1. indicates sentence topic 2. indicates contrast with another option (stated or unstated) 3. adds emphasis

指示句子的主题

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だ

1. be, is

断定助动词，是，是也

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