1.leading cause 主要原因
例句:Diabetes: Obesity is the leading cause of type 2 diabetes.
糖尿病:肥胖是产生2型糖尿病的主要原因 。
2.be diagnosed with 被诊断为
例句:In 1923, he was diagnosed with cancer of the jaw, a result of years of cigar smoking.
1923年,他被诊断出由于长期吸入雪茄烟所导致的颚部的癌症(口腔癌)