海面的英文：
sea level

参考例句：

It's hard to pilot a boat in rough waters.
在有风浪的海面为船领航是很困难的。

Thomas Hudson looked out at the flatness of the blue sea and the darker blue of the Gulf
托马斯?赫德森呆望着湛蓝的海面，海面水平如镜。在海湾那儿，都是深蓝一片了。

A rising westerly wind was whipping up a moderate sea
西风逐渐加紧，平静的海面上起了波浪。

The boats anchored off Boston.
那几艘船在波士顿港外海面下锚停泊。

Plankton and nekton are pelagic organisms
浮游生物和自游生物都是海面的生物。

A killer whale calf learned the trick of luring gulls to the surface of the water with fish.
有一只小虎鲸学会了用漂着的鱼把海鸥引到海面上来的把戏。

sea condition
海面情况

(facial) cleaning cream
海面奶

The wind dropped and the sea quieted.
风势减弱了，海面平静下来。

The seagulls wheeled over the sea.
海鸥在海面上盘旋。

sea是什么意思：
n. 海，海洋；大量，茫茫一片

Beyond the seas
在国外,在海外

He adventured on a unknown seas.
他冒险驶入陌生的海域。

White breast of the dim sea.
朦胧的海洋那雪白的胸脯。

The sea washes the base of the cliffs.
海水冲击悬崖的底部。

The air by the sea is pure and healthy.
海边的空气清新又有益健康。

level是什么意思：
n. 水平线，水平面；高度；层；水平；级别
adj. 水平的，同高度的；笔直的；平静的
v. 推平；毁坏；使平等；瞄准；变平；坦率诚实地对待

Level off the shelves with a spirit level.
用酒精水平仪把架子弄平。

But there is plenty of scope at that level.
然而在此水平上还是有足够的余地。

The worker levelled their looks at the foreman.
工人们用目光逼视着工头。

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

They leveled a building with the ground.
他们拆除了一座建筑物。