intrauterine device (IUD)的用法和樣例：
例句
- Many women, however, adapt easily to the IUD after some initial discomfort.
可是，許多女性在某些初發(fā)的不適過(guò)去以后，很容易適應宮內避孕器。 - In certain cases, particularly if the woman has not yet had any children, the IUD may cause severe cramps and bleeding.
在有些病例，宮內避孕器可能導致嚴重的痛經(jīng)和出血，有些從未生育過(guò)的婦女尤甚。
