🧩 词语组成解析
pin
[pin]
n. 钉;别针，扣针，饰针;大头针;没价值的东西;
vt. 压住;（用钉等）钉住，钉住，别住，扣住;用障壁等)围住，关住（俚语）抓住;[军]牵制;
adj. 针的;钉的;销的;大头针的;
grass
[ɡræs]
n. 草，青草;草地，草坪;告密者;〈俚〉龙须菜;
vt. 用草覆盖;使…长满草;使…吃草;
vi. 渐渐被草覆盖;放牧;
🗣️ 情景例句
A thief has just robbed me. Can you send the police?
一个盗贼抢劫了我，你能替我报警吗？
A fool always rushes to the fore.
傻瓜总爱强出头。
Where does Bill sit in the classrooom?
比尔坐在教室的那块儿？