双壳贝

Both halves of this delicate bivalve are exactly matched.

这种精美的双壳贝的两扇完全对称。

When the Thompson quadruplets espied him one day,they called him a bivalve and ran quickly away.

有一天，汤普森家的四胞胎看见他，"双壳贝！"

When the Thompson quadruplets espied him one day, they called him a bivalve and ran quickly away.

有一天，汤普森家的四胞胎看见他，"双壳贝！"喊完后一溜烟的跑走了。

Use 3 pins for each bivalve sample, and a yellow pin only for bivalve 2, in the following way

每种双壳贝样本用三支相同颜色的大头针标示，黄色的大头针仅用於标示样本2，方式如下

PART B As you have seen during the dissection, the three bivalves show differences in their muscles.

在解剖过程中可以观察到，这三种双壳贝的闭壳肌存在著差异

The aim is to compare anatomical structures in three marine bivalves.

这个解剖题的主要目标，是比较三种海栖双壳贝的构造

Black marine bivalves usually steamed in wine.

黑色的双壳贝，通常在白酒里蒸。

The mantle cavity is lateral and in most bivalves, the gills have a respiratory and digestive function.

双壳贝的外壳是由外套膜分泌而来，套膜包覆著内脏，在多数双壳贝中，外套腔多位於两侧，鳃具有呼吸和消化的功能。

Unlike other molluscs, bivalves lack a radula and feature labial palps, which carry food from the gills to the mouth.

与其他软体动物不同的是，双壳贝缺乏齿舌，具有唇瓣，可将食物由鳃送到口部。

There is a case of an oysterlike bivalve that evolved a more and more spiraled shell until, just before extinction, the valves could barely open.

这里有个例子，一种牡蛎状双壳贝，进化出越来越趋螺旋状的外壳，直到该物种灭绝前，其外壳已经几乎打不开了。

On closer examination, though, this is not a vote for multilateralism but just the opposite.

仔细审视后我们发现，这并非是对多边主义投出的赞成票，而是恰好相反。

Uncovering their weak spots, so I can defeat them.

揭露出他们的弱点，这样我就可以打败他们了。