Bacterium reading
[医] 里丁杆菌
🧩 词语组成解析
🗣️ 情景例句
But you had to be good at math.
但是你数学一定很好。
Light troubles speak; great troubles are silent.
小困难，大声叫嚷；大困难，闷生不响。
The comparable speed from the Moon is only 1.5 miles per second.
而从月球出发的相应速度只是每秒1。5英里。