Tracers
(tracer 的复数) n. 追踪者, 描图者, 描绘工具\\n[计] 跟踪程序
🗣️ 情景例句
Sorry, I've already got plans.
对不起， 我有事。
They that do nothing learn to do ill.
游手好闲，容易学坏。
When he began to play a tune, we had our first glimpse of the snake.
当他开始吹奏一支曲子时，我们才第一次看到那条蛇。