美 [ɪn frʌnt]
在前面：表示在某物的前部区域。
领先：表示在比赛或竞争中处于领先位置。
内脚背
... head and front 顶峰，主要部分；主要项目 in front 在前面；在面前；在最重要(或最前面)的位置 make front to 朝向…，面向…方向 ...
... look out 留神；当心；注意 in front 前方；正对面 make room for 给……腾出地方 ...
... in fact 实际上，事实上 in front 在前方（面），在正对面 in front of 在……前面 ...
... In force 有效，生效，在实施中 In front 在前方(面);在正对面 In full 充足，十足 ...
在…前面
The crowd parted in front of them.
人群在他们面前分开了。
She dozed off in front of the fire.
她在炉火前打起盹儿来。
He sat nodding in front of the fire.
他坐在火炉前打盹儿。
The doctor says you should point the device so the flow of air is just in front of your face.
VOA : special.2009.07.14
And, furthermore, to put the background in front, 1s2 2s2 2p3 let's do the electronic structure. It is 1s2, 2s2, 2p3.
此外，把他的背景知识都翻出来，我们分析一下电子结构，这是。
固态化学导论课程节选 : 麻省理工公开课
So I think that it's true that the economy is difficult and there is big challenge in front of us.
所以我觉得，目前的经济形势真的很困难，我们面临着很大的挑战。
SpeakingMax英语口语达人 : 事业就是挑战
He is standing in front of a bold and colorful painting similar to those created by the abstract-expressionist artist Jackson Pollock.
VOA : special.2010.09.20
And when the anchorman was not in front of the camera, there was a good chance he was on his boat.
VOA : special.2009.08.16
"Certainly the most natural for me is performing in front of an audience, " he says.
In front of me, a small chapel was built into the side of the mountain.
He stands in front of his open stove, looking happily out over the bay.