跨越国界和学科的合作是应对全球健康挑战的唯一途径。
I see a sweetness in her smile,Blight light shines from her eyes,But life is complete; contentment is mine, Just knowing that... just knowing that she's alive。
The best strategies are flexible enough to adapt to change.
法律是一种反映社会价值和规范的社会现象。