immersion
n. （做某事的）专心，投入；浸没，浸泡；沉浸式语言教学法；<英>浸入式热水器；掩始；（基督教的）洗礼，浸礼
例句
The wood had become swollen from prolonged immersion.
这块木头由于长时间浸泡而变大了。
《柯林斯英汉双解大词典》
Immersion in cold water resulted in rapid loss of heat.
浸泡在冷水中导致热量迅速散失。
《牛津词典》
Leaves, brown with long immersion, rose to the surface and vanished back into the depths.
长时间浸泡而成褐色的叶子浮上了水面，又消失在了水的深处。
