artificial turf, artificial grass

Zhifu (a district of Yantai, Shandong, China)

Chinese fountaingrass (Pennisetum alopecuroides)

Bermuda grass (Cynodon dactylon)

Used to describe butterfly effect. For want of a nail the kingdom was lost.

混入: the act of mixing; the state of being mixed; a mixing or mingling of two or more things, typically in an undesirable way

混入: to mix one thing into another, typically in an undesirable way; to mingle, to become mixed, to get mixed, typically in an undesirable way

懇切: kind; exhaustive

懇切: kindness, cordiality; exhaustiveness

婚約者: fiancé or fiancée