Gravis
[医]重的，剧烈的
🗣️ 情景例句
This is as useful as screen door on a submarine.
这毫无用处。
United we stand, divided we fall.
合即立，分即垮。
Everybody here is busy getting ready for it and buying Christmas presents.
这里的每一个人都在忙于为圣诞节做准备和忙于购买圣诞节礼物。