n.手電筒;閃光燈
I signaled to them with a flashlight. 我用手電筒向他們發(fā)信號(hào)。
He took a flashlight lest it should get dark before he returned. 為了預(yù)防回來以前天就黑了,所以他帶著手電筒。
You can use the flashlight when you take a photo indoors. 在室內(nèi)拍照時(shí)可用閃光燈。