a. (used of temperament or behavior) marked by a retiring nature
s. retarded in intellectual development
s. having made less than normal progress
常见例句
1
The irrational fear of [palindrome]s (words that read the same forwards and backwards). > Dude 1: Hey, what's your name? > Dude 2: Bob. > Dude 1: AAAAAAAAAAH! *Runs and hides behind sofa* > Bob: Wow. > Dude 1: AAAAAAAAAAH! *Runs away and falls down stairs*
2
The body is usually compressed laterally, and the anterior pairs or legs are directed downward and forward, but the posterior legs are usually turned upward and backward. The beach flea is an example
3
A prefix in words from the Greek, denoting up, upward, throughout, backward, back, again, anew.
4
Characterized by unequal toes, three turned forward and one backward, as in most passerine birds.
5
graceful Old World ruminant with long legs and horns directed upward and backward
