Peridontal
[医] 牙周的, 牙周膜的
🗣️ 情景例句
Lacks tact.
不够机敏。
That's the way I look at it, too.
我也是这么想的。
So far, no man has travelled farther than the moon, but spaceships without people have reach other parts of the universe.
到目前为止，尚未有人到过比月球更远的地方，但无人驾驶的宇宙飞船已到达过宇宙的其它地方。