Ucd
abbr. usual childhood diseases 儿科常见病
🗣️ 情景例句
why you have so many problems with math.
为什么你在数学方面有那么多问题。
Storms make trees take deeper roots.
风暴使树木深深扎根。
The dogs have greater freedom, too, for they are allowed to wander outside their enclosure.
狗也比较自由，被放出围栏，四处遛达。