1、constant

不斷的;重復的;一直存在的

She suggests that women are under constant pressure to be abnormally thin.

她暗示說女性總是處在保持身材異常瘦削的壓力之下。

Inflation is a constant threat.

通貨膨脹始終是個威脅。

恒定物;常數(shù)；常量；常項

In the world of fashion it sometimes seems that the only constant is ceaseless change.

在時裝界，有時似乎唯一永恒不變的東西就是不斷的變化。

Two significant constants have been found in a number of research studies.

若干研究已經發(fā)現(xiàn)了兩個重要常量。

恒定的;不變的

The average speed of the winds remained constant.

平均風速保持穩(wěn)定。

2、burst out

突然…起來

The class burst out laughing.

全班突然大笑起來。

Then the applause burst out.

然后突然掌聲雷動。

突然說出；大聲喊出

'I want to be just like you', she bursts out.

“我想就像你一樣。”她大聲喊道。

突然出現(xiàn)；突然發(fā)生

Malaria is bursting out again all over the world.

瘧疾突然又在全世界流行起來。

Then war burst out.

戰(zhàn)爭突然爆發(fā)。