例如，美国的邮政编码是五位数字加上可选的“4个”限定号码，后者由连字符和四位附加数字组成。
For example, a U.S. ZIP code is five digits plus an optional "plus 4" qualifier composed of a hyphen and four additional digits.
甚至连白宫、五角大楼和司法部也对帕迪拉究竟会构成什么威胁存在意见分歧。
Even the White House, Pentagon and Justice Department couldn't seem to agree on what kind of threat Padilla posed.
这群运动健将举重若轻，毫不费力地在伸手不见五指的地表和碍事的树木间穿梭，连一个趔趄、绊脚都没有。
The athletic creatures moved about with ease, despite their burden, navigating the invisible terrain and obsta-cles of trees without a hitch or stumble.
应用推荐