green ; pale ; become blue
希刺克厉夫走到她椅子背后，向前探身，却让她看不见他那因激动而变得发青的脸。
Heathcliff went to the back of her chair, and leant over, but not so far as to let her see his face, which was livid with emotion.
发青的木柴没有干透，不好烧。
他们年老的时候，仍要结果子。要满了汁浆而常发青。
They will still bear fruit in old age, they will stay fresh and green.
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