After an hour and a half, I pulled my cell phone out to call the friends I was supposed to meet that evening.

一个半小时后，我拿出手机给我那天晚上要见面的朋友们打电话。

youdao

The United States invented the modern solar cell over a half century ago.

美国在五十年前就已经研发出了现代太阳能电池。

youdao

To record the union of cell and vesicle, the researchers created vesicles and cell membranes with half of a fluorescent compound.

为了观察细胞和囊泡的结合，研究人员在囊泡和细胞膜中各加入一半荧光化合物。

youdao

It was the kind of place where I should have a clear shot to half a dozen cell phone towers, and five bars of call-making, web-surfing smartphone goodness.

FORBES: In High Tech Heaven, Telcos Deliver Paradise Lost

At the same time, only 12% of the population have a formal bank account, while almost half of them own a cell phone.

CNN: Banking revolution saving lives in Africa

Chicory came up with a way to embed this software trick directly into a half-millimeter-square section of a silicon chip, making an otherwise slow-witted cell phone chip act like a genius.

FORBES: Hardwired