这幅画是原作的拙劣仿制品，完全失去了艺术价值。

This painting is a poor ___imitation of the original, completely losing its artistic value.

孩子们特别喜欢模仿老师的说话方式。

The kids especially enjoy doing an ___imitation of their teacher's way of speaking.

她戴的这条项链是仿钻石的，看起来几乎和真的一样。

The necklace she's wearing is made of ___imitation diamonds, looking almost like the real thing.