catalyst的复数形式怎么写

I see my role as being a catalyst for change.我认为我的角色是促成变革。A catalyst is a substance which speeds up a chemical reaction.催化剂是一种能加速化学反应的物质.It acts as a catalyst in the process of fermentation.它在发酵过程中起触媒的作用....

n.触媒，催化剂，〈比喻〉触发因素，促进因素，〈口〉有感染力的人...

Aspirin is synthesized through O - acylating reaction from acid and anhydride acid with anhydrous carbonate as catalyst.以水杨酸和乙酸酐为原料,采用无水碳酸钠作为催化剂经O - 酰化反应合成了阿司匹林.In 2002, we develop Photo - catalyst & electronic Ionizer A...

catalyst的音标：catalyst的英式发音音标为：['kætəlɪst]catalyst的美式发音音标为：['kætlɪst]...

The mint coins millions of nickels and dimes each year.造币厂每年都要铸数以百万计的分币和角币.A dime is the equivalent of two nickels.一角硬币等于两个五分镍币.Don't take any bad nickels.别上当....

吃晚饭...

Although disabled by polio during the Second World War, Proctor was also a first-rate helmsman.二战期间尽管身患小儿麻痹症，普罗克特仍不失为一流的舵手。The proctor demanded of him his reason for doing so.学监要他说出做这事的理由。A proctor's assistant at Ox...

...a cantankerous old man.牢骚满腹的老人a cantankerous old man爱抱怨的老头He met a crabbed, cantankerous director.他碰上了一位坏脾气、爱争吵的主管。a cantankerous and venomous-tongued old lady喜欢吵架、言语恶毒的老女人He was nothing but a narrow, ignorant, and ca...

v.使自动化( automatize的过去式和过去分词 )...

“传令兵”的英语可以翻译为：orderly，batman ...

“胡安”的英语可以翻译为：[人名]Juan...

“圣诞快乐”的英语可以翻译为：Merry Christmas，[电影]Sheng dan kuai le...

“鳁鲸”的英语可以翻译为：finback，sei whale，rorqual ...

Donor countries are becoming more choosy about which countries they are prepared to help.捐赠国在愿意帮助哪些国家的问题上越来越挑剔了。I'm very choosy about my clothes.我对自己的衣着很讲究。She’s very choosy about what she eats and drinks.她对吃喝非常挑剔。S...

Temporary catwalks were used in the stay erection.安装拉索时设置了临时脚手.Checked or striped ensemble dressing is popular right now, appearing on catwalks.出现在时装表演舞台上的格子和条子女套服现在很流行.Dan Sloan takes us on a stroll along Tokyo's c...

“画家”的拼音为：huà jiā...

estivating的音标：...

socket的音标：socket的英式发音音标为：['sɒkɪt]socket的美式发音音标为：['sɑkɪt]...

speculate的近义词/同义词有：risk, gamble, venture, chance, theorize, guess, conjecture, meditate, deliberate, study, consider, contemplate, reflect, contemplate, meditate, generalize, conjecture, chance, study, consider, theorize...