simulate
/ˈsɪmjuleɪt; `sɪmjəˌlet/ v[Tn]
1 pretend to have or feel (esp an emotion) 假装有或感到（尤指情感）
simulate anger, joy, interest, etc 假装愤怒、 高兴、 有兴趣等
her carefully simulated disappointment 她精心装出的失望.
2 reproduce (certain conditions) by means of a model, etc, eg for study or training purposes （用模型等）模拟（某环境）（如用於研究或训练）
simulate flight using a model plane in a wind tunnel 用模型飞机在风洞里模拟飞行
The computer simulates conditions on the sea bed. 这个计算机能模拟海底环境.
3 take on the appearance of (sth/sb) 模仿, 伪装（某物[某人]）
insects that simulate dead leaves 伪装成枯叶的昆虫
change colour to simulate the background 改变颜色以模仿得与背景一致.