Ld-50
[医] 半数致死量
🧩 词语组成解析
致死剂量
fifty
🗣️ 情景例句
Sure, call me and we'll get together.
当然，给我打个电话，我们聚聚。
What did he answer you?
他回答了你什么？
and these will ply the short wings with such irresistible power that they can bore for long distances through an opposing gale before exhaustion follows.
这些肌肉以巨大的力量扇动短小的翅膀，使这类鸟能顶着大风飞行很远的路才会疲劳。