下地的英文：
go to the fields; leave a sickbed

参考例句：

The peasant led an ox to the fields.
那个农民牵牛下地。

To ascend the heavy or to descend to earth
上天下地

Sow the seed in the ground
播种下地

He is jumping up and down.
他一上一下地跳着。

Try a header off a diving board
尝试从跳板头朝下地跳下去

The patient was allowed up(ie permitted to get out of bed)after 10 days.
病人十天以后才允许起来(准予离床下地).

They seldom descend to the ground. They can glide 200 ft (about 60 m) or more from one tree to another.
很少下地。滑翔记录达到60公尺或更远。非洲的飞鼠属鳞尾松鼠科

To move(a body part)rapidly from side to side or up and down,as in playfulness,agreement,admonition,or chatter.
摇动(摆动)快速地从一边到一边地或上下地运动(身体的一部分)，如表示顽皮、同意、警告或聊天

"That waving of swords I saw, those cheers I heard, arid the sight and sound smote heavy on my heart."
“我见到刀剑挥舞，我听到庆功欢呼，此景此声一下一下地重击着我的心。”

The only trouble is the weeds. If you leave them for three days, they choke the place up.
就是野草太容易长了，你只要三天不下地去，你看看，真有你收的！ 你顶好拿牛去吃光算了。

fields是什么意思：
n. 原野，田地；运动场；领域，专业；实地，野外
adj. 实地的，野外的，野战的；野生的；田间的
v. 接球；巧妙回答

A rectangular field is to be subdivided into eight equal fields to sell.
这块矩形的土地被划分成八等分再出售。

Scatter seeds on the fields/scatter the fields with seeds
在田里播种[把种子撒在田地里]

They leveled a field yesterday.
他们昨天平整场地了。

leave是什么意思：
v. 离开；出发；舍弃；脱离；辞去；遗忘；听任；留下；交托
n. 休假；许可；辞别

To leave;vacate.
离开；撤出

I leave that to you.
这都留给你啦。

Leaves die, fall, and shrivel.
叶子凋零、飘落枯萎了。

sickbed是什么意思：
n. 病床

The experimental research of teaching of pediatrics clinic observing and thinking using sickbed as unit
儿科“以病床为单位的临床观察与思考”教学模式的实验研究