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
Shylock must promise to leave the money upon his death to his daughter and her husband.
夏洛克必须答应在他死后把这笔财产留给他的女儿和女婿。
But why did white people want to catch Africans and put them in chains?
但是为什么白人要把非洲人抓起来,戴上镣铐呢?
All the bees that had been at the nearby place were doing the circling dance.
所有在近处点的蜜蜂在跳一种完全不同的舞蹈,一种摇摆舞。
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📊 同为初级词汇
deem
vt. 认为,视为;主张,断定;
vi. 认为,视为,以为;作某种评价;
wherever
adv. (究竟)在哪儿;
conj. 无论什么地方;各处,处处;
assault
n. 攻击;袭击,进攻;威胁,殴打;侵犯人身;
vt. 袭击;强暴;使(感官)难受;
vi. 发起攻击;动武;
arrow
n. 矢,箭;箭状物;箭头记号;[天]天箭座;
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