Limestone
[ 'laɪmston ]
第2级
其它 Other
n. 石灰岩,石灰石;
💡 词根助记
lime石灰+stone石头 → 石灰石
📝 例句
Caves form when water infiltrates limestone.
水渗透石灰石则形成洞穴。
Iron is extracted from iron ore by heating the ore with coke and limestone.
铁是通过用焦碳和石灰石加热铁矿石而提炼出来的。
Calcitic limestone is mainly CaCo 3 with relatively small amounts of impurities.
方解石灰岩,主要是由CaCo 3和少量的杂质所形成。
The answer is the same if the limestone overlays the sandstone.
当灰岩盖在砂岩上时,系数是相同的。
They were quarrying limestone.
他们在开采石灰石。
🌱 联想助记
【记】lime-石灰,stone-石头:石灰石
📖 牛津释义
limestone
n [U] type of rock, eg chalk, composed esp of the remains of prehistoric plants and animals 石灰岩.
📖 同为「CET-6」词汇
obtain
vt. 获得,得到;流行;买到,达到(目的);
vi. 通行,通用;流行;存在;
percent
n. 百分比,百分数;百分之一;
adj. 百分之…的,每一百中有…的;百分之…支付利息的;
adv. 以百分之…地,每一百中有…地;
efficient
adj. 有效率的;(直接)生效的;能干的;(因省钱、省时或省力等而)收效大的;
perfect
adj. 完美的;正确的;优秀的;极好的;
n. [语]完成时;
train
n. 火车;行列;一系列相关的事情; 拖裾;
v. 训练;教育;培养;修整;
bird
n. 鸟,禽;<俚>少女,姑娘,人,家伙,东西;<口>飞机,火箭,导弹;
vi. 观察和辨认鸟;捕鸟,打鸟;
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🗣️ 情景例句
Because Manhattan Island is made of solid rock, it is safe to build very tall buildings.
曼合顿岛是由坚固的岩石构成的,这使得兴建大厦非常安全。
The earliest people of New Zealand, the Maori, came from the islands of polynesia in the Pacific, which means many islands.
新西兰最早的居民,毛利人,来自太平洋的玻利尼西亚,玻利尼西的意思是许多岛屿。
One moment we were walking along the top of a hill and now we could see no more than about thirty metres ahead of us.
一时间我们还在山顶上行走,而现在30公尺开外的地方我们都看不清了。
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📊 同为初级词汇
discipline
vt. 训练;使有纪律;处罚;使有条理;
n. 训练;纪律;学科;符合行为准则的行为(或举止);
conceive
vt.& vi. 怀孕;构思;想像,设想;持有;
vi. 怀孕;设想;考虑;
moss
n. 苔藓;藓沼;莫斯(男子名);泥炭沼;
vt. 以苔藓覆盖;使长满苔藓;
abbr. [宇](=manned orbital space station)载人轨道航天站;
agent
n. 代理人;代理商;药剂;特工;
vt. 由…作中介;由…代理;
adj. 代理的;
quiver
vt.& vi. 微颤,抖动;
vt. 使震动;
n. 抖动;颤音;箭筒;箭筒;
striking
adj. 显著的;引人注目的;容貌出众的;妩媚动人的;
v. 打( strike的现在分词);击;敲响;报时;
brood
vt.& vi. 孵蛋;沉思;焦急地考虑;
n. (雏鸡、鸟等的)一窝;一家的孩子;
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