Clastogen
断裂剂
🗣️ 情景例句
about five years ago.
大约五年前。
All measurements of each case must not exceed 1.5m*1m*1m.
每只木箱体积不应超过1。5m*1m*1m。
I learnt to drive in four weeks。
我四个星期就学会了开车。