It is common in Japan for girls to confess their love to boys on St. Valentine’s Day by giving them chocolates. However, in America, not only married couples and lovers but also friends and family members verbally express their love to each other.
This protein acts like cement in joining cells.
A computer game in which monsters fight against each other (literally: which makes monsters fight against each other) will be on sale soon.
The friends do something to/for each other/together