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(1)乘(add a number to itself a stated number of times and calculate the total)[I，T+n，T+n+prep(by)，T+n+adv(together)]：learn to～學(xué)習(xí)乘法;can～會做乘法;2 and 4～to make 8. 2乘4等于8。M～2 by 4 (2～ied by 4) is/is equal to/equals/makes 8.2乘以4等于8。If you～2 and 6 (together) or 3 and 4 (together)， you can get 12 (i.e.2×6 or 3×4=12). 如果把 2和6 或 4和3相乘，就得12 這個數(shù)。M～the numbers together. 把這些數(shù)乘起來。

(2)(使)增加((cause to)increase greatly in number or amount)[I，T+n]：Her anxieties/mistakes/problems～ied.她的焦慮/錯誤/問題增加了。The rumours～ied. 謠言越傳越玄。The world population is～ing fast.世界人口正在迅速增加。Doing this will～our readers/good writings/our chances of success.這樣做會增加我們的讀者/好的作品/我們成功的機會。Her fortune was～ied as the　years passed.她的財富隨時間的推移在不斷增加?！纪絜nlarge，increase，add to;〖反〗decrease，diminish;

(3)繁殖(increase in number，esp by breeding)[I，T+n]：Germs/Virus/Flies/Rabbits～rapidly.細菌/病毒/蒼蠅/兔子繁殖迅速。Every species of animals～ies naturally.每一種動物都會自然地繁殖?！玝acteria and other living organisms in the laboratory 在實驗室里繁殖細菌和其他生物;〖同〗reproduce，breed;

→?multipli′cation n 增多，繁殖;乘法