出面的英文：
act in a official capacity
act in a personal capacity

参考例句：

An elder interfered to stop the argument.
一位长者出面干预，以平息这场争论。

She took it on herself to apologize for me.
她亲自出面替我道歉。

She came in to apprize me that my presence was required.
她进来通知我需要我出面。

There are circumstances in which the State must step in to protect children.
有些情况下，国家必须出面保护儿童。

Ironically, it was the United States for the Soviet dissentient, Bukovsky.
很可笑，是美国出面袒护苏联的持不同政见者布科夫斯基。

Farm and labor movements began to ask the government to intercede on their behalf.
农民和劳工运动开始要求政府代表他们出面调解。

Mr. Green had to appear before the committee to explain his behavior
格林先生必须在委员会上出面解释他的行为。

The segment of the boundary above the water table and below the phreatic surface is called the seepage face
水面以上和潜水面以下的一段边界叫做渗出面。

The government may step in to settle the disagreement between the union and the employers.
"政府可能会出面干预,解决工会和雇主之间的纠纷。"

She even intervened on various occasions on behalf of women who were destitute.
她甚至在各种场合代表贫困的妇女出面。

act是什么意思：
n. 行为，行动；法案；法令；一幕，段；装腔作势
v. 行动；扮演；假装；装作；起作用，见效；举动像

This is an act of depressing.
这是使人压抑的行为。

The act of disappointing.
使人失望的行为

We must act, we must act quickly.
我们必须行动，立即行动。

official是什么意思：
n. 官员，行政人员；裁判员，执法人
adj. 官方的，法定的，正式的；公务的，公职的；冠冕堂皇的；官员的

Babbitt was an official delegate.
巴比特是一名正式代表。

He is an important official in the government.
他是政府的要员。

It is a scandal for officials to take bribes.
政府官员接受贿赂是可耻的事。

capacity是什么意思：
n. 容量；能力；能量；资格

Persons without civil capacity or with restricted civil capacity
无民事行为能力或者限制民事行为能力

in one's corporate capacity
以法人资格

The capacity of this bottle is one litre.
这个瓶子的容量是1公升。