design for sedentary
design for sit
design for seat
designed 为设计，后面的 engineered 意思是采用美国工程技术
is designed for...is used only in...for the use of...如有问题，欢迎继续追问：）求采纳～
is designed for... be intended for... be provided for ...
sth is specially designed for......sth is designed expressly for ......sb has exclusive use of sth.....
design for....
Designed to sit.
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