a. 精选的, 采摘的, 已收获的, 截出的, 已清除的, 有尖头的, 多刺的

v select carefully from a group

v look for and gather

v harass with constant criticism

v provoke

v remove in small bits

v remove unwanted substances from, such as feathers or pits

v pilfer or rob

v pay for something

v pull lightly but sharply with a plucking motion

v attack with or as if with a pickaxe of ice or rocky ground, for example

v hit lightly with a picking motion

v eat intermittently; take small bites of