情同手足: treating sb. like one's own brother; as intimate as brothers; be close like brothers; brotherly love [friendship]; feeling like sb.'s own brother; regard each other as brothers; with broth
情同手足黑猩猩: among the wild chimpanzeesnational geographic 100 years vol04
追求: 1.(争取) seek; aspire; pursue 短语和例子追求和平 follow after peace; 追求真理 seek truth; be in pursuit of truth; 追求名誉地位 be after fame and position; 追求名利 seek fame and fortune; 追求幸福 pursue happiness; 拼命追