flat (adj.) 平坦的
The road in front of my house is really flat.
range (v.)(數量、種類等變化的)範圍,幅度,區域
The participants range from kids to adults.
threat (n.) 威脅、恐嚇
The threat of being killed makes him scared.
branch (n.) 樹枝
The birds are sitting on the branch.
recently (adv.) 最近、近來
I have met lots of smart people recently.
common (adj.) 常見的
Traffic lights are common on the streets.
endemic species (n.) 特有種
Formosan black bear is one of the endemic species of Taiwan.
diurnal (adj.) 日行性的
Lions are diurnal animals.
conservation (n.) 保育行動
Wildlife conservation takes lots of effort and time.
effectiveness (n.) 效力
The effectiveness of the medicine is significant.