- 需: need; want; require
- 慎重: careful; cautious; prudent; ...
- 的: 4次方是 The fourth power of 2 i ...
- 慎重的: cautious; choosey; circumspective; conservative; considerate; deliberate (d05); deliberative; farsighted; gingerly; mature; measured; nice; prudent
- 不慎重的: indiscreet
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