to hardly change
to have little change
to keep steady
to level off
to remain constant
to stay the same

表示程度的副词：
1. 程度较大：
considerably
dramatically
greatly
markedly
obviously
quickly
rapidly
sharply
significantly
suddenly

2. 程度较小：
slightly
gradually
slowly
steadily
时间的嵌入
嵌入时间时所使用的介词和介词词组：
in
from……to……
between……。and……
during……and……
at the start of ……
by the end of ……
over ……
at the end of ……
throughout ……
时间's + 具体数据

上升和下降趋势的组合描述：（嵌入了时间和程度之后）
1. 先上升后下降的句型：
…… increased slowly  during…… and …… but fell sharply in ……。
A steady fall in …… during …… and …… followed the sharp increase in ……。

2. 先下降后上升的句型：
…… fell before …… began to make a recovery ……
…… continue the recovery， climbing to ……
…… dropped during …… but increased again in ……
…… fell and then pick up during ……
…… collapsed before rising to ……at the end of ……

3. 起伏波动的句型：
…… fluctuated sharply all through ……

4. 波动不大的句型：
…… hardly changed through the period between ……and ……
柱状图形的描述
转换为线形图形的描述
饼状图形的描述
对于百分比进行描述所使用的句型：
…… % the …… is/has/have/are ……
…… accounts for ……% of the total
…… takes up ……% in the whole chart

趋势的比较：
1. 表示相似的句型 （实例） ：
Both share prices rose sharply in January.
Neither company has made a profit yet.
Like X， Y fell in June.
X rose just as sharply as Y.

2. 表示差异的句型（实例）：
X fell sharply whereas/while Y remained steady.
X fell quickly compared to Y.
Unlike Y， X rose by 10%.
X rose far more dramatically than Y.

3. 表示倍数的句型：
the …… doubled/tripled in …… compared with those in ……

4. 客观比较的句型：
…… is …… in contrast to ……

数据的修饰：
1. 表示不足的词或词组：
up to
below
under
almost
nearly

2. 表示超过的词或词组：
over
more than
just over

3. 表示大约的词：
about