be made in：在……地方創(chuàng)造；be made of：由…制成。be made in：in表示“在里面”的靜止狀態(tài)或一定范圍內的動作；be made of：of是英語中一個常用的介詞，助動詞，表示……的；由…制成等意思，在英語中有大量詞組使用of，如out of由于。

This kind of decision cannot ever be made in a vacuum.

這種決定絕不能脫離實際。

Cancellations must be made in writing.

撤銷必須有書面通知。

Progress on this issue must be made in parallel to any moves on the economic front.

這個問題上的發(fā)展應該和經(jīng)濟領域的發(fā)展同步。

Good studies are needed to lend credence to the notion that genuine progress can be made in this important field.

需要進行認真的研究，以讓人們相信在這一重要領域可以取得真正的發(fā)展。

The pipes should be made of plastic.

這些管子應該是用塑料制作的。

The taps appeared to be made of solid gold.

水龍頭似乎是用純金制成的。

Only the rough guess and estimate can be made of it.

對此只能作出一個粗略的測算。

Everybody should be made aware of the risks involved.

應該讓人人都知道其中的風險。

來源：高三網(wǎng)