verb · to pluck or play a string instrument

他正在练习弹钢琴。

noun · a projectile fired from a weapon, such as a bullet, shot, or shell

战士们省着用，每一颗弹都要瞄准了打。

verb · to spring, leap, flick, or flip, often with the fingers

他弹了一下手指，发出清脆的声音。

verb · to shoot or launch something using a catapult or spring-like mechanism

他用手指轻轻一扣，硬币就弹了出去。

noun · a small ball, pellet, or crossball

他拿着一颗玻璃弹，在水泥地上滚来滚去。

noun · possessing elasticity or describing the quality of material that can spring back

这种橡皮球很有弹，扔到地上能跳得很高。

verb · to fluff or tease cotton fibers to make them soft

弹棉花是一项传统的民间手艺。

verb · to accuse or impeach an official of wrongdoing

御史因他行为不端，在大殿上弹了他一本。

verb · to pop up or appear suddenly on a screen, as in a dialog box or notification

我的网页上突然弹了一个广告。