and it is only in the seas and rivers, and sometimes lakes, where mud and sit have been continuously deposited,
所以只有在泥沙不停淤积的海洋和江河里，有时在湖泊里，
新概念英语第四册 Lesson 26 The past life of the earth

📚 句中词汇解析

从本句中提取的重要词汇

sometimes ['sʌmtaɪmz] 词频1 词根: sometime
adv. 有时，间或;时而;
💡 sometime某一时间的+s表副词 →有时
"Even friends disagree sometimes."
即便是朋友有时也有分歧。
近义：occasionally, oft, once, rarely, betweentimes, betweenwhiles 反义：invariably, periodically, repeatedly, steadily, usually, consistently
continuously [kən'tɪnjʊəsli] 词频4
adv. 连续不断地，接连地;时时刻刻;连着;直;
"The valley is continuously watered by the melting snow from the mountains."
群山融化的雪不断流经山谷.
近义：incessantly, permanently, perpetually, steadily, successively, unceasingly 反义：erratically
deposited
v. 储存；存放；放置（deposit的过去分词）
近义：entrant
seas
n. 海洋（sea的复数）
rivers
n. 里弗斯（人名）；河流州（尼日利亚州名）；河水钻

📚 更多「新概念英语第四册」例句

and that their commissariat had no organization, but depended on irregular raids.
他们的军需供应处于无组织状态，只是靠临时抢夺来维持。
and we control it by means of the mud which we circulate down the drill pipe.
我们让泥浆顺着钻杆向下循环，用这种方法来控制压力。
On turning eagerly to the text, one learns that the lady was a typist who found the sound of office typewriters worried her more and more until eventually she had to go into a mental hospital.
当人们急切地看完正文后，便知道这位女子是个打字员，办公室打字机的声音使她越来越烦恼，最终住进了精神病医院。
This is done by a great number of ring-shaped air jets on the bottom of the craft.
船底装上大量环状喷气嘴以实现这一目的。
cloudless skies, savage sandstorms,
无云的天空，凶猛的沙暴，
like the cooling of a hot kettle or the wearing-out of a pair of shoes.
就像一壶热水迟早会凉下来，一双鞋渐渐会磨破一样。