1、contain

裝有;容納

The bag contained a Christmas card.

這個包里裝著一張圣誕卡。

Factory shops contain a wide range of cheap furnishings.

工廠車間里陳設著種類繁多的廉價家具。

包含;含有

Greek yogurt contains much less fat than double cream.

希臘酸奶比高脂濃奶油所含脂肪要少得多。

Many cars run on petrol which contains lead.

很多車使用含鉛汽油。

(著作、講話或電影中)包括，包含

This sheet contained a list of problems a patient might like to raise with the doctor.

這張單子列出了病人可能會向醫生提出的一系列問題。

The two discs also contain two of Britten's lesser-known song-cycles.

這兩張唱片還包含了布里頓兩首不甚知名的聲樂套曲。

2、constant

持續不斷的;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；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.

若干研究已經發現了兩個重要常量。