他们只不过是掩饰感情, 假装友好.用英语怎么说？

他们只不过是掩饰感情, 假装友好.

They were just dissimulating, pretending to be friendly.

they

pron. 他/她/它们，人们，大家，政府，当局，她们；

例句
The storms had abated by the time they rounded Cape Horn.
他们绕过合恩角时，暴风雨已经减弱。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

just

adv. 刚才，仅仅，只是，正好，刚要；adj. 公正的，合理的，恰当的，合法的，正确的；

例句
It became very clear that the incident was not just an aberration, it was not just a single incident.
事实已经很清楚，这件事不是偶发的，它并不是一起孤立的事件。

dissimulating

v. 掩饰（感情），假装（镇静）( dissimulate的现在分词 )；

pretending

v. 假装( pretend的现在分词 )，伪装，（尤指儿童）（在游戏中）装扮，自诩；

例句
The captain was astern, pretending he was sleeping.
船长在船尾，假装睡着了。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

be

v. 是，有，存在，做，成为，发生；aux. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质；

例句
The older child should be able to prepare a simple meal...
那个年纪稍大的孩子应当会做一顿简单的饭菜。

friendly

adj. 友好的，亲密的，有帮助的，互助的；adv. 友好地，朋友般地；

例句
They were anything but friendly off-camera, refusing even to take the same lift.
在银幕外,他们彼此一点也不友好,甚至不愿同乘一部电梯。