Stickogram
反射系数图
🗣️ 情景例句
we need to put together volunteers
我们需要募集义工
The phone is busy.
电话占线。
After crossing the Equator, the captain called in at a port to have a new rudder fitted,
跨越赤道后，船长将船停靠在一个港口，在那儿换了一只舵。