a. having great power or force or potency or effect
a. 有力的, 有权力的, 强大的
[机] 强力的
1. The new smartphone has a powerful battery that lasts all day.
这款新智能手机的电池非常强大，可以持续一整天。
2. She gave a powerful speech that inspired many people.
她发表了一场激动人心的演讲，激励了许多人。
3. This machine is powerful enough to lift heavy objects easily.
这台机器足够强大，可以轻松举起重物。