firm
单词辨析：
指不软也不是特别硬，但不易变形的。
She can't sleep well on a firm mattress.
她在硬床垫上睡不好。
He bought several firm green apples on his way home.
他在回家的路上买了几个硬的青苹果。
指硬实得难以按下、切开、弄碎等的。
This piece of rock is so hard that you can barely embed anything in it.
这块岩石太硬了，几乎什么也嵌不进去。
There was almost no rain this year so the ground is now as hard as stone.
今年一年几乎没下雨，现在土地硬得像石头一样。
指材料很硬，很难或无法弯曲的。
Be careful! This kind of plastic is inflexible.
小心！这种塑料不能弯曲。
多指生产、销售产品或服务的公司。
He works for a bus company.
他在一家公共汽车公司工作。
This computer company was formed in 2004.
这家计算机公司成立于2004年。
多指综合型大公司，也指在其他地区或国家拥有分公司的大集团。
West Coast Corps is a large international trade corporation.
西海岸公司是一家大型国际贸易公司。
It takes brains to run a multinational corporation.
管理跨国公司要有头脑。
尤指小型公司或商行。
He has set up an electronics firm of his own.
他自己开了一家电子公司。
Kim is with a firm of accountants in Birmingham.
金在伯明翰的一家会计师事务所工作。
相关例句：
The quick handshake was firm and cool
短暂的握手有力沉稳。
This treatment helps tone the body, firm up muscles and tighten the skin
该治疗有助于强身健体、紧致皮肤。
The ground rules have been firmed up
基本原则已得到进一步强化。
The council is standing firm against the barrage of protest
委员会面对接二连三的抗议拒不让步。
There's unlikely to be firm news about the convoy's progress for some time.
一段时间内都不大可能会有关于车队行进情况的确切消息。
The firm's employees were expecting large bonuses.
这家公司的雇员期待着发放大笔奖金。