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　　日期在某一個時間段固定不變：fixed in time

　　在一系列的時間段中轉變：change over time

　　持續變化的data 在不同情況下：

　　增加：increase, rise, grow, go up, appreciate..。

　　減少：decrease, fall, drop, go down, decline,.。

　　波動：fluctuate/ rebound/ undulate/ wave..。

　　穩定：remain stable/ stabilize/ level off..。

　　最常用的兩種表達法

　　動詞 + 副詞形式(Verb + Adverb form)

　　形容詞 + 名詞形式(Adjective + Noun form)

　　1、Verb + Adverb form

　　The number of XXX +increase/ jump/ rise/ decrease/ drop/ fall/ fluctuate ... +insignificantly/ significantly/ slightly/ suddenly/ rapidly/ dramatically/ sharply/ steeply/ steeply/ steadily/ gradually/ slowly ...+from (第一時間) to (第二時間) / between (第一時間) and (第二時間)

　　2、Adjective + Noun form

　　There was a (very) sudden/ rapid/ dramatic/ significant/ sharp/ steep/ steady/ gradual/ slow/ slight +increase/ jump/ rise/ decrease/ drop/ fall/ fluctuation (注意：上述很多詞不可用于修飾fluctuation) +in the number of XXX from (第一時間) to (第二時間) / between (第一時間) and (第二時間)

　　3、描述穩定的日期：

　　The number of XXX remained steady/ stable from (第一時間) to (第二時間) / between (第一時間) and (第二時間)

　　The number of XXX stayed the same from (第一時間) to (第二時間) / between (第一時間) and (第二時間)

　　There was little change/ hardly any change/ no change in the number of XXX from (第一時間) to (第二時間) / between (第一時間) and (第二時間)

　　4、描述高點值以及低點值

　　高點值：

　　The monthly profit/ The figures/ The situation ...+peaked in (月份/年) <準確時間點用at XXX> at XXX% / XXX (極點data) 或者reach a peak/ a high point at XXX% / XXX (極點data)

　　低點值：

　　XXX bottom out/ reach +rock/ the bottom/ a low point或者hit a trough

　　此外， 在描述過程中還有很多的conjunctional words/ sentences，最常用的固定搭配如下：

　　并列：

　　as well as (句首/中)， also, as well (句尾)， either, neither, too, moreover,

　　furthermore, in addition, additionally, besides, what’s more, apart from..。

　　舉例：

　　for example, for instance, to illustrate, as an illustration, in

　　particular, particularly, especially

　　事實：

　　as a matter of fact, in fact, actually, as long as, so long as..。

　　雷同/近似：

　　similarly, likewise (句首/尾)， at the same time, equally..。

　　轉折：

　　however, whereas, nevertheless, nonetheless, though, although, even

　　though, while, yet, on the contrary, contrarily, in contrast, conversely, on

　　the other hand, unlikely, in stead (of)， in spite of , despite of..。

　　原因與結果：

　　(1)cause-suggestion (幾乎不常用)

　　since/ now that..., I hope that.../because of/ on account of/ owing to/ thanks to + (doing) sth./I hope that..。

　　ause-effect (較常用)

　　XXX lead to/ bring about/ result in/ account for..。

　　(一個句子)， therefore/ thus/ hence/ as a result/ consequently/ (and) so..。

　　ffect-cause (較常用)

　　XXX be caused by/ result from/ be the result of/ be the effect of/ be the consequence of..。

　　(一個句子)， because..。

　　it is adj. that..。

　　it is unimaginable that..。

　　it is undeniable that..。

　　it is interesting to discover that..。