With the acquisition of smaller companies by larger ones, the 1960's saw a wave of new conglomerates.

When carbon is added to iron in the proper proportions , the result is steel.

The wheels of the first road vehicles were fashioned from crude stone disks.

In literature, caricatures讽刺画 usually contain verbal exaggeration through which the writer achieves comic and often satiric 讽刺effects.

Some cosmetics manufacturers attempt to capture the rose's unmistakable fragrance香味 in soaps and perfumes.

Eyespots, the most rudimentary eyes, are found in protozoan原生动物 flagellates 鞭毛虫 , flatworms 扁形虫 , and segmented worms片段 蠕虫 .

Ella Grasso, elected governor of Connecticut in 1974, supported the enactment (given, granted) of a freedom-of-information law.

Blue－green algae grow abundantly in salt marshes.

The megaphone(microphone) makes the voice sound louder because it points sound waves in one direction and keeps them from spreading out in all directions.

The first paper was made from the bark of the mulberry tree.