He said that his team identified for the first time ever a previously unknown mechanism by which a product of staphylococci prevents inflammation.
他说，他的团队首次确认了以前未知的机制。葡萄球菌通过这个机制产生了预防炎症的抗体。
Since the first images appeared more than two weeks ago, an unknown culprit has uploaded dozens of fresh pictures every day, each time putting more celebrities into more compromising positions.
自从两个多星期前出现的第一批照片，一名不知名的罪魁祸首每天上传数十张新照片，每次都让更多的明星陷入危险的境地。
For the first time, Anna realizes that you can remain unknown even to those you have most dear.
安娜第一次意识到你可以保持一无所知即使是对你最亲近的人。
I embarked on the journey, turning off my phone for the first time, well, probably ever. I would be jetting all over America then landing in a country with a family basically unknown to me.
我踏上旅途，第一次关上了手机，嗯，这么多年来第一次。我在美国上方飞来飞去，然后降落在一个国家，和一家基本上不认识的人生活在一起。
Using gas chromatography mass spectroscopy (GC-MS) method, 14% unknown components and contents in pecan oil were determined for the first time.
采用色-质联用仪对山核桃仁油中14%的未知成分及含量进行了确定和分析。
For the first time, the wind has changed its direction and has taken you to an unknown valley.
第一次，风改变了它的方向并把你带到了一个不为人知的山谷。
For corrosion loss due to unknown causes, deductible per accident for first-time accident is 20% of the loss and for second-time accident the deductible per accident is 50% of the loss.
由于不明原因造成的腐蚀损失，第一次事故的免赔率为损失金额的20%，第二次事故的免赔率为损失金额的50%。
No time in the history the industries face more uncertainties and turbulence, positive or negatives remain unknown than 2017. For buyers the very first instinct to reduce risks.
2017年，全球性风险不仅带来正反两个方向的影响，更带来不确定性和动荡性。
No time in the history the industries face more uncertainties and turbulence, positive or negatives remain unknown than 2017. For buyers the very first instinct to reduce risks.
2017年，全球性风险不仅带来正反两个方向的影响，更带来不确定性和动荡性。
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