清楚

This is a difficult topic to figure out for the average person.

这是一个困难的课题，为一般人弄清楚。

The role of migratory birds in the spread of highly pathogenic avian influenza is not fully understood.

候鸟在高致病性禽流感病毒的传播中所起的作用还不完全清楚。

Our results demonstrate that fetal exposure specifically increases ethanol avidity by, in part, making it taste and smell better.

尽管病理研究把人类胎儿期酒精接触与酒精滥用的风险以及首次饮用酒精的年龄更低联系在了一起，它的准确机制尚不清楚。

For example, farmers from the Aymara and Quechua regions of Bolivia and Peru time the planting of their potatoes on the clarity of a constellation of stars known as the Pleiades.

举例来说，农民从艾马拉和玻利维亚和秘鲁的时间对一个已知的昴星星座清楚他们的马铃薯种植克丘亚语地区。

B: I don't know.

我不清楚。

E, the little Hottentot herd boy, came up to me and handed me a letter , which he said the English baas had left for me.

那天的事我记不大清楚了，只记得当时阳光惨淡，田野也失去了美丽的丰采和欣欣向荣的景象，萧瑟凄凉得跟冬天或大旱时一样。

Molly and I leaned in closer to see the photos clearly: one baby dressed in pink, one in blue.

Molly 和我斜着身子靠的近些想看得清楚些，一个孩子穿这粉红的衣服，一个穿这蓝色的衣服

As for screaming and I am not quite sure, but I sometimes go to bed at home when the baby will suddenly burst into tears, crying on the air every breath, I asked the doctor said to be dreaming.

至于尖叫我不太清楚，不过我家宝宝有时睡觉的时候会突然大哭，哭得都喘不上气了，我问过医生说是在做梦。

I am not clear, why do I pace back and forth in here.

我不清楚，我为什么来回地踱步在这里。

While the basic pulse was always articulated by a variety of instruments (sometimes aided by handclaps and foot stamping rooted in gospel music) and featured prominently in the mix, the backbeat was often minimized.

尽管基本拍有规律地由多种乐器清楚地表达（有时借鉴源自黑人福音歌的击掌和跺脚），并且以击打的方式为显著特征，但是反拍节奏常被弱化。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。