1、get down

使沮喪；使憂郁

At times when my work gets me down, I like to fantasize about being a farmer.

有時當工作讓我沮喪時，我喜歡幻想自己是一個農場主。

俯身；跪下；趴下

She got down on her hands and knees on the floor.

她雙手撐地跪在地上。

'Get down!' she yelled. 'Somebody's shooting!'

“趴下！”她大聲喊道，“有人開槍！”

寫下；記下

The idea has been going around in my head for quite a while and now I am getting it down on paper.

這個想法在我腦海里縈繞許久了，我現在就將它寫在紙上。

（費力地）吞下；勉強咽下

I bit into a hefty slab of bread and cheese. When I had got it down I started talking.

我咬了一大塊面包和奶酪，強咽下去之后開始說話。

2、friction

矛盾;不和;爭執

Sara sensed that there had been friction between her children.

薩拉感覺到她的孩子之間有過爭執。

The plan is likely only to aggravate ethnic frictions.

這一方案很有可能只會加劇種族沖突。

摩擦力

The pistons are graphite-coated to reduce friction.

活塞上涂了一層石墨以減小摩擦力。