David's mother was unstable and moody.戴维的妈妈情绪不稳定，心情也不好。Moody people are very difficult to deal with.喜怒无常的人很难打交道。He can be rather moody at times.有时候他情绪不稳定....
Young etiolated leaves may also be accompanied by cell division.幼小的黄化叶子也可能伴随细胞分裂.These compounds are present in etiolated tissue of seedlings grown in darkness.这些化合物存在于黑暗中生长的幼苗的黄化组织内....