Vier
n. 竞争者
🗣️ 情景例句
It's a great college.
那是一所好大学。
Nothing is impossible to a willing mind.
世上无难事，只怕有心人。
It effectively spread the disease all over the continent and drastically reduced the rabbit population.
蚊子把这种疾病扩散到整个澳洲大陆，效果甚佳，结果兔子的数目大为减少。