释义：
become extinct 灭绝；绝种
例句：
At the current rate of decline, many of the rain forest animals...
2021-02-20
释义：
die out 灭绝；消失
例句：
A translocated species could die out from lack of food, for example.
2021-02-20
释义：
die off 相继死去，逐个死亡
例句：
Contraction of front and side parts as cells die off was observed&nbs...
2021-02-20
释义：
fade away 逐渐消失
例句：
With unutterable misery, the fettered little King heard the voices and foot...
2021-02-20
释义：
study up 钻研；专门阅读；用功准备
例句：
I'll get a little closer, and study up on him.
我要...
2021-02-20
释义：
study up on 仔细的研究；考察，调查
例句：
I'll get a little closer, and study up on him.
2021-02-20
释义：
jump in 投入
例句：
Do you want a ride? Jump in.
你想搭车吗？快上来吧。
A&nb...
2021-02-20
释义：
jump into 跳入；跳进……
例句：
Why did King Aegeus feel upset and jump into the sea as ...
2021-02-20
释义：
plough around 试探
例句：
They began to plough around among the delegations.
他们开始在代表团中进...
2021-02-20
释义：
plough into 投入
例句：
If I really plough into my studies now, I should be ready for the...
2021-02-20
释义：
type in 打入，输入
例句：
Let's actually type in something in all lowercase.
让我们输入一些小写...
2021-02-20
释义：
type into 键入
例句：
Describes how to convert one type into another type.
描述如何将一...
2021-02-20
释义：
knock in （把钉子）钉入
例句：
Soon there was no room to knock in another tent-peg.
很快地，...
2021-02-20
释义：
go after 追求，追逐
例句：
We rarely see someone go after the health area.
我们很少看到有...
2021-02-20
释义：
run after 追求；追赶；追逐
例句：
Two policemen run after the robber.
两名警察追赶强盗。
...
2021-02-20
释义：
run against 撞上；偶遇；违反；与…竞选
例句：
It is no easy job to run against John Glenn, Ohio's D...
2021-02-20
释义：
run up against 撞上；偶遇；碰见；遭遇
例句：
Have you run up against any problems in getting you...
2021-02-20
释义：
rush into 仓促行动；仓促从事
例句：
Just before the lights turned dark, I saw my father rush into&nbs...
2021-02-20
释义：
run upon 撞上；偶遇；萦绕着
例句：
FOURTH MESSENGER: the people run upon a northern bank!
信使丁...
2021-02-20
释义：
run down vt. 撞倒；使……变弱；停止；浏览；追溯；（电池）耗尽；筋疲力尽 vi. （电池）耗尽；筋疲力尽
例句：
The battery has run&n...
2021-02-20