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- proportionate 209
- tongue 1142
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- FAQ 106
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- alloy 668
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- master 740
- wholehearted 321
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- clasp 737
- pursuant 220
- Confused 281
- Conservative 652
- consequently 589
- Detestable 61
- commercialized 127
- Headquarters 126
- detest 192
- half mast 214
- avail 238
- swing 952
- meadowlark 99
- patron 321
- feather 724
- teacher 428
- circle 1305
- imputation 106
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- nb 115
- clarify 789
- gritter 149
- upside 193
- outshine 91
- rating 296
- resistance 1069
- END 401
- reservation 797
concentration
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★
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noun 
/ˌkɒns(ə)nˈtreɪʃ(ə)n/
/ˌkɒns(ə)nˈtreɪʃ(ə)n/ | singular | concentration |
| plural | concentrations |
- 1[U] the process of giving all your attention to something 集中精力；專心；專注
It took all his concentration to stay awake. 他竭力使自己保持清醒。
lose concentration :She lost concentration for a moment and slipped. 她一不留神滑倒了。
a lapse of concentration (=a short period when you do not concentrate) 走神 :He had a little lapse of concentration and lost the game. 他有點走神，結果輸掉了這場比賽。
Synonyms and related wordsCareful thought: thought, consideration, assessment... - 2[C/U] a large number of people or things in one area or a large amount of a particular thing 聚集的人群（或物）
large concentrations of Christians in this part of the city 聚居在城市這一帶的大批基督徒
Synonyms and related wordsLarge amounts or quantities of a specific kind: a froth of something, avalanche, blizzard... - 3[C/U] science the amount of a substance that is present in something 含量；濃度
An investigation found high concentrations of cancer-causing chemicals on the property. 一項調查發現該建築含有大量致癌的化學成分。
Synonyms and related wordsGeneral words for numbers, amounts and quantities: accumulation, allocation, allowance...
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