n. 微分算子,倒三角形
The river in San Antonio winds through the middle of the business district, and the River Walk, or Pasco del Rio, is the city´s most popular attraction.
圣安东尼奥的河蜿蜒穿过商业区的中心;而河边的步行街,也就是 Pasco del Rio,是这座城市最受欢迎的景点。
It was very wet and windy the day I drove over the hill to Del Norte.
我开车越过小山去德尔诺特的那天下大雨又刮大风。
In the beginning of the movie I, Robot, a robot has to decide whom to save after two cars plunge into the water—Del Spooner or a child.
在电影《我,机器人》的开头,两辆车掉进水里后,机器人必须决定要救谁,是戴尔·史普纳还是一个孩子。
In the beginning of the movie I and Robot, a robot has to decide whom to save after two cars plunge into the water—Del Spooner or a child.
在电影《我和机器人》的开头,两辆车掉进水里后,机器人必须决定要救谁,是 Del Spooner 还是一个孩子。
Its beaches are not up to Caribbean standards but resorts such as Vina del Mar are generally clean and unspoilt and have a high standard of services.
它的海滩虽然没有达到加勒比的标准,但像维纳德马这样的度假胜地一般都很干净,没有受到破坏,而且服务水平很高。