progress bar的用法和樣例：
例句
- The progress bar is meant to measure some task.
進(jìn)度條用來(lái)對某些任務(wù)進(jìn)行測量。 - Progress bars are commonly used to provide feedback to the user when downloading large files or performing similar long-running tasks.
進(jìn)度條通常是在下載大文件或執行類(lèi)似的長(cháng)時(shí)間運行的任務(wù)時(shí)為用戶(hù)提供反饋。
