Sif
abbr. selective identification feature 选择识别特征
🗣️ 情景例句
Well, let's take everything to the living room.
嗯， 我们把东西都放到客厅去。
A swine over fat is the cause of his own bane.
猪死都因身过肥；象以齿焚。
he realizes its volume, as the space that the shape displaces in the air.
他能意识到物体的体积，那就是它的形状在空气中所占的空间。