🧩 词语组成解析
bark
[bɑrk]
vi. 吠叫;厉声说话;
vt. 大声喊出;厉声说出;
n. 犬吠声;似吠声;树皮;
tree
[tri]
n. 树;木料;树状图;宗谱;
vt. 把…赶上树;使处于困境;把鞋型插入（鞋内）;
🗣️ 情景例句
After my wife died,
我妻子去世后，
How many years have you been playing pingpong?
你打乒乓球多少年了？
below 20 per cent, its bactericidal action is negligible.
浓度低于20％时，杀菌能力基本上就不存在了。