You know , it ' s just by sheer happenstance that his grandfather 知道吗，你祖父发现这个
2.
You know , it ' s just by sheer happenstance that his grandfather . . 你知道，那是偶然发现的. .
3.
I cannot believe that we were so lucky just to come by happenstance 我们是有创造力的，是唯一天生有创造力的物种。
4.
If , by reproductive happenstance , the girl had been born an identical twin , her matching sister could have produced all the marrow she needed 如果出生时凑巧这个女孩有一个同卵双胞胎姊妹，那么她的双胞胎姊妹就可以提供她所需要的全部骨髓。
5.
Every flower and blade of grass , every leaf and tree at cuhk is there by design , not happenstance , the result of careful nurturing by generations of colleagues and students . the beauty of the campus is treasured by all members of cuhk 中文大学的一花一草、一树一木都不是偶然而生的，而是中大历年来同事、同学的悉心培育，大学优美的校园环境，每一位中大人都甚为珍惜。
6.
Because the potential hazards pollen grains are subject to as they are transported over long distances are enormous , wind - pollinated plants have , in the view above , compensated for the ensuing loss of pollen through happenstance by virtue of producing an amount of pollen that is one to three orders of magnitude greater than the amount produced by species pollinated by insects 因为，潜在的危险，花粉粒在长途运输中所要遭受的潜在危险是巨大的，风媒传粉的植物，按上述观点来看，补偿了在偶然事件中伴随产生的花粉损失，通过的优点是，生产出的花粉数量比那些依靠昆虫传粉的植物所产生的花粉数量大一到三个数量级。
